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I. SOME SUBGROUPS OF THE BARYCENTRIC GROUP

https://doi.org/10.34130/1992-2752_2025_1_4

Marina A. Stepanova – The Herzen State Pedagogical University of Russia, ratkebug@yandex.ru

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Abstract. By fixing the basic simplex in an affine space, one can introduce a barycentric coordinate system that assigns to each point an ordered set of numbers whose sum is equal to one. The transition matrices from one barycentric coordinate system to another barycentric coordinate system are called barycentric and form the barycentric group (a barycentric matrix is a nondegenerate square matrix, the sum of the elements in each column of which is equal to one).

Keywords: affine space, affine transformation, barycentric coordinate system, basic simplex, barycentric matrix.

References

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4. Stepanova M. A. Application of Barycentric Point Combinations in the Theory of Convex Polyhedra. Metodika prepodavaniya v sovremennoy shkole: aktual’nyye problemy i innovatsionnyye resheniya : materialy II Rossiysko-uzbekskoy nauchno-prakticheskoy konferentsii, Tashkent, 15–16 noyabrya 2024 goda [Teaching methods in a modern school: current problems and innovative solutions : materials of the II Russian-Uzbek scientific and practical conference, Tashkent, November 15–16, 2024]. Herzen State Pedagogical University. 2024. Pp. 263–268. (In Russ.)
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8. Stepanova M. A. Barycentric coordinates on a plane. Matematika dlya shkol‘nikov [Mathematics for Schoolchildren]. 2024. No 4. Pp. 8–(In Russ.)
9. Ponarin Y. P. Basic metric problems of planimetry in barycentric coordinates. Matematicheskij vestnik pedvuzov Volgo-Vyatskogo regiona [Mathematical Bulletin of Pedagogical Universities of the Volga-Vyatka Region]. 2002. Vol. 4. Pp. 114–132. (In Russ.)
10. Ponarin Y. P. The method of barycentric coordinates in metric problems of stereometry. Matematicheskij vestnik pedvuzov VolgoVyatskogo regiona [Mathematical Bulletin of Pedagogical Universities of the Volga-Vyatka Region]. 2004. Vol. 6. Pp. 189–200. (In Russ.)
11. Stepanova M. A. Barycentric coordinate system. Barycentric group. Sovremennyye problemy matematiki i matematicheskogo obrazovaniya: Gertsenovskiye chteniya, 77 : sbornik nauchnykh trudov Mezhdunarodnoy nauchnoy konferentsii, Sankt-Peterburg, 16–18 aprelya 2024 g. [Modern problems of mathematics and mathematical education: Herzen readings, 77: collection of scientific papers of the International scientific conference, St. Petersburg, April 16–18, 2024]. A. I. Herzen State Pedagogical University. 2024. Pp. 356–360. (In Russ.)
12. Dubrovin B. A., Novikov S. P., Fomenko A. T. Sovremennaya geometriya. Metody‘ i prilozheniya. Geometriya poverxnostej, grupp preobrazovanij i polej. 6-e izd. [Modern Geometry. Methods and Applications. Geometry of surfaces, groups of transformations, and fields. 6 ed.]. Мoscow: URSS, 2013. Vol. 1. 335 p. (In Russ.)

For citation: Stepanova M. A. Some subgroups of the barycentric group. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics], 2025, no 1 (54), pp. 4−17. (In Russ.) https://doi.org/10.34130/1992-2752_2025_1_4

II. CAPTURING COORDINATED EVADERS IN A NONSTATIONARY SIMPLE PURSUIT PROBLEM WITH PHASE RESTRICTIONS

https://doi.org/10.34130/1992-2752_2025_1_18

Nikolai N. Petrov – Udmurt State University, kma3@list.ru

Ekaterina Yu. Ponomareva – Udmurt State University, kma3@list.ru

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Abstract. A non-stationary problem of simple pursuit by a group of pursuers of a group of evaders, provided that all evaders use the same control and do not leave the boundaries of a convex polyhedral set, is considered. Sufficient conditions for capturing at least one evader have been obtained.

Keywords: simple pursuit, pursuer, evader, capture.

References

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For citation: Petrov N. N., Ponomareva E. Yu. Capturing coordinated evaders in a nonstationary simple pursuit problem with phase restrictions. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2025, no 1 (54), pp. 18−32. (In Russ.) https://doi.org/10.34130/1992-2752_2025_1_18

III. CONTEXT TASKS: MATHEMATICS, COMPUTER SCIENCE, CONLANGES

https://doi.org/10.34130/1992-2752_2025_1_33

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University, valmasha@mail.ru

Marija A. Valueva – Petersburg State University of Culture

Nadezhda O. Kotelina – Pitirim Sorokin Syktyvkar State University, nkotelina@kirill

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Abstract. In scientific and pedagogical literature, the inclusion of contextual tasks in mathematics education is regarded as a way to enhance students’ interest, develop critical thinking, and foster professional competencies, and the ability to apply mathematical
knowledge in future careers. The article offers for discussion the author’s tasks, compiled based on artificial languages–conlangs. These tasks were tested in courses such as ”Discrete Mathematics”, ”Mathematical Foundations of Programming”, ”Applications of Discrete Mathematics in Computer Science”, and ”Computer Graphics”. The study involved students majoring in ”Applied Computer Science”, ”Applied Mathematics and Computer Science”
and ”Mathematics and Computer Science” at Syktyvkar State University (named after Pitirim Sorokin).

Keywords: contextual tasks, conlangs, mathematics, Python

References

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For citation: Babikova N. N., Valueva M. A., Kotelina N. O. Context Babikova N. N., Valueva M. A., Kotelina N. O. Context tasks: mathematics, computer science, conlanges. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2025, no 1 (54), pp. 33−51. (In Russ.) https://doi.org/10.34130/1992-2752_2025_1_33

IV. DEVELOPMENT AND POPULATION OF THE «LATE PALEOZOIC MIOSPORES» DATABASE USING ARTIFICIAL INTELLIGENCE TECHNOLOGIES

https://doi.org/10.34130/1992-2752_2025_1_52

Maria A. Shestakova – Pitirim Sorokin Syktyvkar State University, mariasheska@yandex.ru

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Abstract. This article presents an approach to developing and automatically populating a database containing information on Late Paleozoic miospores. A number of scientific publications on palynology have been used as data sources, including structured descriptions of genera of Late Paleozoic miospores. Text was extracted from the printed source using optical character recognition (OCR) technology based on the Python library Pytesseract. Data processing and structuring were implemented using the DeepSeek large language model. A relational database was implemented using the SQLAlchemy library and the SQLite database management system to store the structured information.

Keywords: large language models, OCR, Pytesseract, databases, Late Paleozoic miospores.

References

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4. Babenko V. V., Kotelina N. O., Telnova O. P. Software and information support for paleopalynological tasks. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mehanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer Science]. 2021. No 1 (38). Pp. 27–42. (In Russ.)
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For citation: Shestakova M. A. Development and population of the «Late Paleozoic miospores» database using artificial intelligence technologies. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2025, no 1 (54), pp. 52−68. (In Russ.) https://doi.org/10.34130/1992-2752_2025_1_52

V. ODYNIEC VLADIMIR PETROVICH (TO THE 80TH ANNIVERSARY OF BIRTHDAY)

https://doi.org/10.34130/1992-2752_2025_1_69

Valerian N. Isakov – Pitirim Sorokin Syktyvkar State University

Vyacheslav A. Popov – Pitirim Sorokin Syktyvkar State University

Olga A. Sotnikova – Pitirim Sorokin Syktyvkar State University, sotnikovaoa@syktsu.ru

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Abstract. The article tells about professor V. P. Odyniec, a known mathematician and educator. It highlights the periods of his professional activity in St. Petersburg and Syktyvkar.

Keywords: Odyniec Vladimir Petrovich, review of publications over the last ten years.

References

1. Vershik A. M., Viro O. Ya., Isakov V. N.et al. Odyniec Vladimir Petrovich (to the sixty-fifth anniversary of his birth).Vladikavkazskiy matematicheskiy zhurnal [Vladikavkaz Mathematical Journal]. 2010. Vol. 12. Issue 4. Pp. 79–81. (In Russ.)
2. Popov V. A. Odyniec Vladimir Petrovich. Kafedra matematiki Komi pedinstituta: istoriya stanovleniya i razvitiya [Department of Mathematics of Komi Pedagogical Institute: history of formation and development]. V. A. Popov. Syktyvkar: Komi Pedagogical Institute. Pp. 167–168. (In Russ.)
3. Isakov V. N., Nikitenkov V. L., Popov V. A. To the seventieth anniversary of Professor One Vladimir Petrovich. Vestnik Syktyvkarskogo universiteta. Ser. 1. [Bulletin of the Syktyvkar University. Ser. 1] 2015. Issue 1 (20). Pp. 97–102. (In Russ.)
4. Isakov V. N., Nikitenkov V. L., Popov V. A. Odinets Vladimir Petrovich (on the 70th anniversary of his birth). Matematicheskiy vestnik pedvuzov i universitetov Volgo-Vyatskogo regiona : periodicheskiy mezhvuzovskiy sbornik nauchno-metodicheskikh
   rabot [Mathematical Bulletin of Pedagogical Universities and Universities of the Volga-Vyatka Region : periodic interuniversity collection of scientific and methodological works]. Kirov: Scientific Publishing House of Vyatka State University, 2016. Issue 18. Pp. 24–29. (In Russ.)
5. Komi pedinstitut: vremya innovatsionnogo razvitiya. 1973–2014 : sbornik materialov i vospominanij [Komi Pedagogical Institute: time of innovative development. 1973–2014 : collection materials and memoirs]. Editorial board (compilers): V. N. Isakov (ch. ed.), Z. I. Nemshilova (corresponding ed.), O. E. Bondarenko, N. V. Zakharova, T. P. Koroleva, V. A. Popov. Syktyvkar: Publishing house of SSU named after Pitirim Sorokina, 2022. 774 p.: ill.

For citation: Isakov V. N., Popov V. A., Sotnikova O. A. Odyniec Vladimir Petrovich (to the 80th anniversary of birthday). Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics], 2025, no 1 (54), pp. 69−79. (In Russ.) https://doi.org/10.34130/1992-2752_2025_1_69

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I. ESTIMATION OF INVESTMENT ACTIVITY BASED ON THE NEWS BACKGROUND

https://doi.org/10.34130/1992-2752_2024_4_4

Petr V. Borkov – Bank of Russia.

Olga A. Maltseva – Bank of Russia, maltseva.rs@yandex.ru

Irina V. Polyakova – Bank of Russia.

Evgenija N. Startseva – Pitirim Sorokin Syktyvkar State University

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Abstract. The purpose of our research is to build a leading indicator of investment activity based on the analysis of Telegramchannel news. The available Rosstat data on investment activity are
published with a time lag and are subject to adjustment, which makes it difficult to use them in an operational assessment of the current economic situation. The paper considers two approaches:
the first is based on a keyword filter, the second is based on the „BERT“ language model. Both approaches demonstrate a statistically significant correlation with Rosstat data.

Keywords: NLP, machine learning, BERT, rubert-tiny2, investment activity, Python

References

1. Regulations for assessments, adjustments and publication of statistical observation data on construction and investments in fixed capital. The order of Rosstat dated 26 September 2016 No 544. SPS „Konsul’tant Plyus“ [SPS „ConsultantPlus“ was approved]. Available at: https://www.consultant.ru (accessed: 10/14/2024). (In Russ.)
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6. Yakovleva K. Assessment of economic activity based on text analysis. Den’gi i kredit [Money and credit]. 2018. No 77 (4). Pp. 26–41. DOI: 10.31477/rjmf.201804.26. (In Russ.)
7. Kolyuzhnov D. V., Kolyuzhnov E. D., Lyakhnova M. V. Taking into account the information background in the DSGE model of the Russian economy with adaptive learning. Mir ekonomiki i upravleniya [World of Economics and Management]. 2023. Vol. 23 (4). Pp. 60–82.DOI: 10.25205/2542-0429-2023-23-4-60-82. (In Russ.)
8. Jacob Devlin, Ming-Wei Chang, Kenton Lee and Kristina Toutanova. BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding. Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies. 2019. Vol. 1. Long and Short Papers. Pp. 4171–4186, Minneapolis, Minnesota. Available at: https://aclanthology.org/N19-1423/(accessed: 14.10.2024).
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11. Dale David. Malen’kiy i bystryy BERT dlya russkogo yazyka [Small and fast BERT for the Russian language]. June, 2021. Available at: https://habr.com/ru/post/562064 (accessed: 14.10.2024).
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For citation: Borkov P. V., Maltseva O. A., Polyakova I. V., Startseva E. N. Estimation of investment activity based on the news background. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 4−20. (In Russ.) https://doi.org/10.34130/1992-2752_2024_4_4

II.NUMERICAL AND ANALYTICAL SIMULATION OF TWO-DIMENSIONAL STATIC BIDOMAIN EFFECTS IN THE MYOCARDIUM

https://doi.org/10.34130/1992-2752_2024_4_21

Igor’ N. Vasserman – Institute of Continuous Media Mechanics UB RAS.

Igor’ N. Shardakov – Institute of Continuous Media Mechanics UB RAS.

Irina. O. Glot – Institute of Continuous Media Mechanics UB RAS.

Aleksey P.Shestakov – Institute of Continuous Media Mechanics UB RAS.

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Abstract. From a macroscopic point of view, cardiac muscle can be considered as two anisotropic conducting media – extracellular and intracellular space, interacting through the membrane. The
model of electrical activity of the heart built on such assumptions is called bidomain. If we assume that the conductivity tensors of the intracellular and extracellular spaces are similar, then the model of the cardiac muscle can be significantly simplified.

Keywords: myocardium, bidomain model, monodomain model, virtual electrodes.

References

1. Sachse F. B. Computational Cardiology. Modelling of Anatomy, Electrophysiology and Mechanics. Berlin: Springer-Verlag Berlin Heidelberg, 2004. 326 p.
2. Sundnes J. et al. Computing the Electrical Activity in the Heart. Berlin: Springer-Verlag Berlin Heidelberg, 2004. 318 p.
3. Poste M. et al A Comparison of Monodomain and Bidomain ReactionDiffusion Models for Action Potential Propagation in the Human Heart. IEEE Trans. Biomed. Eng. 2006. Vol. 53. Issue 12. Pp. 2425–2435.
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5. Vasserman I. N., Matveenko V. P., Shardakov I. N., Shestakov A. P. The mechanism of the initiation of cardiac arrhythmias due to a pathological distribution of myocardial
   conductivity. Biophysics 2016. Vol. 61. Issue 2. Pp. 297–302.
6. Roth B. J. How to explain why „Unequal anisotropy ratios“ is important using pictures but no mathematics. Proc. of the 2006 Int. Conf. of the IEEE Engineering in Medicine and Biology Society. New York, USA, August 30 – September 3, 2006. Pp. 580–583.
7. Roth B. J., Beaudoin D. L. Approximate analytical solutions of the Bidomain equations for electrical stimulation of cardiac tissue with curving fibers. Phys. Rev. E. 2003. Vol. 67. Issue 5. Pp. 051925.
8. Vasserman I. N. Numerical Simulation of Mechanoelectric Feedback in a Deformed Myocardium. J. Appl. Mech. Tech. Phys. 2020. Vol. 61. Issue 7. Pp. 1116–1127.
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10. Goel V., Roth B. J. Approximate analytical solutions to the bidomain equations describing electrical activity in cardiac tissue. Proceedings of the 13th Southern Biomedical Conference. Washington, DC , April 16- 17, 1994. Pp. 967–970.
11. Wikswo J. P. et al. Virtual Electrodes in Cardiac Tissue: A Common Mechanism for Anodal and Cathodal Stimulation. Biophys. J. 1995. Vol. 69. Pp. 2195–2210.
12. Roth B. J. A mathematical model of make and break electrical stimulation of cardiac tissue by unipolar anode or cathode. IEEE Trans. Biomed. Eng. 1995. Vol. 42. Pp. 1174–1184.
13. Roth B. J. Mechanism for polarization of cardiac tissue at a sealed boundary. Med. Biol. Eng. Compute. 1999. Vol. 37. Pp. 523–525.
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For citation: Vasserman I. N., Shardakov I. N., Glot I. O., Shestakov A. P. Numerical and analytical simulation of two-dimensional static bidomain effects in the myocardium. Vestnik Syktyvkarskogo
universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 21−38. (In Russ.) https://doi.org/10.34130/1992- 2752_2024_4_21

III. CONSTRUCTION OF MODELS OF THE IMPACT OF ENVIRONMENTAL QUALITY ON PUBLIC HEALTH

https://doi.org/10.34130/1992-2752_2024_4_39

Viktor A. Rybak – Belarusian State University of Informatics and Radioelectronics, v.rybak@bsuir.by

Text

Abstract. The paper considers the issues of constructing various information models for analyzing and forecasting the impact of air and soil pollution on the health of children. The initial data are
numerical series generated during studies of regional centers of the Republic of Belarus. Morbidity levels were obtained taking into account the division of city territories into service areas of polyclinics. To assess and analyze the quality of the environment, field studies were carried out with sampling and subsequent construction of maps of the probability distribution of pollutant concentrations.

Keywords: neural networks, regression models, environmental quality analysis, neuro-fuzzy model.

References

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   educational institutions of Russia. Radio electronics]. 2020. No 3. Vol. 23. Pp. 93–99. (In Russ.)
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   No 2. Pp. 17–23. (In Russ.)
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8. Zadeh L. Fuzzy sets. Information and Control. 1965. Vol. 8. Pp. 338–353.
9. Zadeh L. The concept of a linguistic variable and its applications to approximate reasoning. Information Sciences. 1975. Vol. 8. Pp. 199–249.
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11. Metodika rascheta kontsentratsii v atmosfernom vozdukhe veshchestv, soderzhashchikhsya v vybrosakh predpriyatiy [Methodology for calculating the concentration of substances in the atmospheric air contained in emissions from enterprises]. OND-86: Goshydromet. L.:
    Gidrometizdat, 1987. 92 p. (In Russ.)
12. Naumenko T. E., Rybak V. A. Legislative support for assessing the risk of impact on public health of atmospheric air quality in the Republic of Belarus. Analiz riska zdorov’yu [Health risk analysis]. 2013. No 1. Pp. 30–35. (In Russ.)
13. Rutkovskaya D., Pilinsky M., Rutkovsky L. Neyronnyye seti, geneticheskiye algoritmy i nechotkiye sistemy : per. s pol’sk. [Neural networks, genetic algorithms and fuzzy systems : transl. from Polish]. Moscow: Goryachaya Liniya – Telecom, 2006. 452 p. (In Russ.)
14. Rybak V. A. Metodologicheskiye osnovy prinyatiya resheniy dlya upravleniya prirodookhrannoy deyatel’nost’yu [Methodological foundations of decision-making for environmental management]. Minsk: RIVSH, 2009. 274 p. (In Russ.)

For citation: Rybak V. A. Construction of models of the impact of environmental quality on public health. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 39−51. (In Russ.) https://doi.org/10.34130/1992-2752_2024_4_39

IV. INVESTIGATIVE TRAINING IN MATHEMATICS AND COMPUTER ALGEBRA SYSTEMS

https://doi.org/10.34130/1992-2752_2024_4_52

Vladimir A. Testov – Vologda State University, vladafan@inbox.ru

Roman A. Popkov – ITMO University, r-popkov@yandex.ru

Text

Abstract. The article shows that the digital transformation of society and education is associated with a new stage of mathematization of knowledge and at the present stage both the
style of mathematical thinking and the mathematical paradigm have changed. In accordance with the changes, it is necessary to change both the content of mathematical courses and the methods of teaching them, giving preference to inquiry-based learning and the use of computer algebra systems.

Keywords: mathematization of knowledge, mathematical modeling, exploratory training, computer experiments.

References

1. Semenov A. L. On the continuation of Russian mathematical education in the 21st century. Vestnik Moskovskogo universiteta. Pedagogicheskoye obrazovaniye [Bulletin of Moscow University. Teacher education]. 2023. Vol. 20. No 2. Pp. 7–45. (In Russ.)
2. Testov V. A. Digitalization of science and education as a result of the synergy of the processes of informatization and mathematization. Pedagogicheskaya informatika [Pedagogical informatics]. 2024. No 2. Pp. 111–120. (In Russ.)
3. Klein M. Matematika. Utrata opredelennosti [Mathematics. Loss of certainty]. Moscow: Mir; 1984. 434 p. (In Russ.)
4. Perminov E. A., Testov V. A. Mathematization of specialized disciplines as the basis for the fundamentalization of IT training in universities Obrazovaniye i nauka [Education and Science]. 2024. Vol. 26. No 7. Pp. 12–43. DOI: 10.17853/1994-5639-2024-7-12-43. (In Russ.)
5. Sadovnichy V. A. Bol’shiye dannyye v sovremennom mire [Big data in the modern world]. Moscow: Moscow State University named after. M. V. Lomonosov, 2017. 28 p. (In Russ.)
6. Vavilov N. A., Khalin V. G., Yurkov A. V. The skies are falling: Mathematics for non-mathematicians. Doklady Rossiyskoy akademii nauk. Matematika, informatika, protsessy upravleniya [Reports of the Russian Academy of Sciences. Mathematics, computer science,
   management processes]. 2023. Vol. 511. No 1. Pp. 144–160. (In Russ.)
7. Popkov R. A., Moskalenko M. A., Tabieva A. V., Matveeva M. V. Algebra vs computer algebra in the context of mass mathematical education. Sovremennoye professional’noye obrazovaniye
   [Modern professional education]. 2024. No 3. Pp. 50–53. (In Russ.)

For citation: Testov V. A., Popkov R. A Investigative training in mathematics and computer algebra systems. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 52−68. (In Russ.) https://doi.org/10.34130/1992-2752_2024_4_52

V. AUTOMATED ANALYSIS OF SHUNGITE MICROSCOPY IMAGES

https://doi.org/10.34130/1992-2752_2024_4_69

Vladimir A. Ustyugov – Pitirim Sorokin Syktyvkar State University, ustyugov@syktsu.ru

Igor V. Antonets – Pitirim Sorokin Syktyvkar State University.

Evgeny A. Golubev – Institute of Geology, Federal Research Centre Komi Science Centre,
Ural Branch, RAS, golubev@geo.komisc.ru

Text

Abstract. The paper is devoted to the issues of automated analysis of high-resolution transmission electron microscopy images of shungite samples using computer vision technology. The technique
of image preprocessing is described. An algorithm for the selection of shungite structural elements based on the template search method is developed.

Keywords: shungite, electron microscopy, computer vision.

References

1. Melezhik V. A., Filippov M. M., Romashkin A. E. A giant palaeoproterozoic deposit of shungite in NW Russia: Genesis and practical applications. Ore Geol. Rev. 2004. Vol. 24. Pp. 135–154. DOI: 10.1016/j.oregeorev.2003.08.003.
2. Golubev Ye. A., Antonets I. V., Korolev R. I. et al. Characterization of nanostructure of naturally occurring disordered sp2 carbon by impedance spectroscopy. Materials Chemistry and Physics. 2024. Vol. 317. P. 129181. DOI: 10.1016/j.matchemphys.2024.129181.
3. Harris P. J. F. New perspectives on the structure of graphitic carbons. Crit. Rev. Solid State Mater. Sci. 2005. Vol. 30. Pp. 235–DOI: 10.1080/10408430500406265.
4. Toth P. Nanostructure quantification of turbostratic carbon by HRTEM image analysis: State of the art, biases, sensitivity and best practices. Carbon. 2021. Vol. 178. Pp. 688–707. DOI:
   10.1016/j.carbon.2021.03.043.
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7. Kovalevski V. V. Structure of shungite carbon. Russ. J. Inorg. Chem. 1994. Vol. 39. Pp. 28–32.
8. Golubev Ye. A., Antonets I. V. Electrophysical Properties and Structure of Natural Disordered sp2 Carbon. Nanomaterials. 2022. Vol. 12 (21). P. 3797. DOI: 10.3390/nano12213797.
9. Kovalevski V. V., Rozhkova N. N., Zaidenberg A. Z., Yermolin A. P. Fullerene-like structures in shungite and their physical properties. Mol. Mater. 1994. Vol. 4. Pp. 77–80.
10. Sheka E. F., Rozhkova N. N., Holderna-Natkaniec K., Natkaniec I. Nanoscale reduced-graphene-oxide origin of shungite in light of neutron scattering. Nanosystems: Phys. Chem. Math. 2014. Vol. 5. Pp. 659–672.
11. Antonets I. V., Golubev E. A., Shavrov V. G., Shcheglov V. I. Investigation of electrical conductivity of graphene-contained shungite using the high-resolution scanning electron microscopy. Journal of Radio Electronics 2021. No 3. DOI: 10.30898/1684-1719.2021.3.9.
12. Antonets I. V., Golubev Y. A., Ignatiev G. V. et al. Influence of layers orientation of graphene stacks in shungite disordered carbon to its integral electrical conductivity. J. Phys. Confer. Ser. 2022. Vol. 2315. 012039. DOI: 10.1088/1742-6596/2315/1/012039.
13. Antonets I. V., Golubev Y. A., Shcheglov V. I. Application of the trinary discretization method for the structural analysis of natural disordered sp 2 carbon. Fullerenes Nanotubes and Carbon Nanostructures. 2024. Vol. 32. Issue 3. Pp. 246–253. DOI: 10.1080/1536383X.2023.2273416.
14. Antonets I. V., Golubev Y. A., Shcheglov V. I. Evaluation of microstructure and conductivity of two-phase materials by the scanning spreading resistance microscopy (the case of
    shungite). Ultramicroscopy. 2021. Vol. 222. P. 113212. DOI: 10.1016/j.ultramic.2021.113212.
15. Antonets I. V., Golubev Y. A., Shcheglov V. I. et al. Estimation of local conductivity of disordered carbon in a natural carbon-mineral composite using a model of intragranular currents.
    Journal of Physics and Chemistry of Solids. 2022. Vol. 171. P. 110994. DOI: 10.1016/j.jpcs.2022.110994.
16. Antonets I. V., Golubev Y. A., Shcheglov V. I. The effect of structure on the conductivity of disordered carbon (the case of graphene-containing shungite). Fullerenes Nanotubes and
    Carbon Nanostructures. 2023. Vol. 31. Issue 10. Pp. 961–970. DOI: 10.1080/1536383X.2023.2226273.
17. Golubev Y. A., Antonets I. V., Shcheglov V. I. Static and dynamic conductivity of nanostructured carbonaceous shungite geomaterials. Materials Chemistry and Physics. 2019. Vol. 226. Pp. 195–203. DOI: 10.1016/j.matchemphys.2019.01.033.
18. Babikova N. N., Kotelina N. O., Tentyukov F. N. Analysis of data on forest fires in the Komi Republic using Excel and Python. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika.
    Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 2023. No 4 (49). Pp. 29–46. DOI: 10.34130/1992-2752_2023_4_29. (In Russ.)
19. Babikova N. N. Using NumPy to vectorization of Python code. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 2023. No 1 (46). Pp. 14–29. DOI: 10.34130/1992-2752_2023_1_14. (In Russ.)

For citation: Ustyugov V. A., Antonets I. V., Golubev E. A. Automated analysis of shungite microscopy images. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 69−83. https://doi.org/10.34130/1992-2752_2024_4_69

VI.ON THE NUMERICAL SOLUTION OF THE DIRICHLET PROBLEM FOR THE POISSON EQUATION IN AN ARBITRARY DOMAIN

https://doi.org/10.34130/1992-2752_2024_4_84

Andrey V. Yermolenko – Pitirim Sorokin Syktyvkar State University, ea74@list.ru

Yakov A. Pozdeev – Pitirim Sorokin Syktyvkar State University.

Text

Abstract. Solving partial differential equations for an arbitrary domain is a non-trivial task. The article presents an algorithm for numerically solving the Dirichlet problem for the Poisson’s equation. Examples of numerical calculations are given, and the error of the results obtained is estimated.

Keywords: numerical solution, Poisson’s equation, the Laplace equation, the Dirichlet problem.

References

1. Tixonov A. N., Samarskij A. A. Uravneniya matematicheskoy fiziki [Equations of Mathematical Physics]. Moscow: Nauka, 1977. 736 p. (In Russ.)
2. Yermolenko A. V., Kozhageldiev N. V. On the solution of the inhomogeneous biharmonic equation. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. No 3 (44). Pp. 64–78. (In Russ.)
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5. Yermolenko A. V., Osipov K. S. On using Python libraries to calculate plates. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 2019. No 4 (33). Pp. 86–(In Russ.)
6. Kry‘lov V. I., Bobkov V. V., Monasty‘rskij P. I. Vychislitel’nyye metody : ucheb. posobiye [Computational methods : textbook]. Moscow: Nauka, 1977. Vol. 2. 399 p. (In Russ.)

For citation: Yermolenko A. V., Pozdeev Ya. A. On the numerical solution of the Dirichlet problem for the Poisson equation in an arbitrary domain. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 4 (53), pp. 84−94. (In Russ.) https://doi.org/10.34130/1992-2752_2024_4_84

Full text

I. Integration with various payment systems: challenges and solutions

https://doi.org/10.34130/1992-2752_2024_3_4

Timur I. Vasilev – Paybis LTD Scotland, timmi129@yandex.ru

Text

Abstract. In today’s fast-paced digital world, the ability to integrate with various payment systems is most important for companies of any size. Whether you run a small online store or a
large organization, providing customers with easy and secure payment options should always remain a top priority. However, the process of integrating with multiple payment processors can be complex and present many challenges.

Keywords: payment systems, integration optimization, automation, web application.

References

1. Chishti S., Craddock T. The PAYTECH Book. Wiley. 2020. Pp. 48–51.
2. Benson C. C., Loftesness S. Payment Systems in the U.S.: Third Edition. Glenbrook Partners. 2017. Pp. 18–22.
3. O’Mahony D., Peirce M., Tewari H. Electronic Payment Systems for E-Commerce. Artech House. 2001. Pp. 25–33.
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17. Pfleeger C. P., Pfleeger S. L., Margulies J. Security in Computing. 5 ed. Westfield, Massachusetts USA: Prentice Hall, 2015. 910 p.
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For citation: Vasilev T. I. Integration with various payment systems: challenges and solutions. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 3 (52), pp. 4−19.
(In Russ.) https://doi.org/10.34130/1992-2752_2024_3_4

II. Discrete mathematics for computer scientists: three-valued logic

https://doi.org/10.34130/1992-2752_2024_3_20

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University, valmasha@mail.ru\

Text

Abstract. The use of three-valued logics in the development of information systems is primarily associated with the problem of incompleteness and uncertainty in data. All commercial database
systems using the structured query language SQL offer a solution for processing incomplete information based on three-valued logic.

Keywords: three-valued logic, Kleene’s logic, discrete mathematics, learning outcomes.

References

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2. Karpenko A. S. Razvitie mnogoznachnoj logiki [Development of multivalued logic]. Moscow: Publisher of the LKI, 2010. 448 p. (In Russ.)
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   upravleniya im. V. A. Trapeznikova RAN [Management of LargeScale Systems Development (MLSD’2009) : proceedings of the Third International Conference (sections 4–6), Moscow, October 5–7, 2009. V. A. Trapeznikov Institute of Control Sciences of the Russian Academy of Sciences]. Moscow: Establishment of the Russian academy institute of management problems named after V. A. Trapesnikova RAS, 2009. Vol 2. Pp. 254–256. (In Russ.)
5. Men‘shix A. V., Men‘shix T. V. The choice of methods for modeling estimates of the criminal situation. Okhrana, bezopasnost’, svyaz’ [Security, safety, communication]. 2024. No 9–3. Pp. 133–137. (In Russ.)
6. Men‘shix A. V., Men‘shix T. V. Using logical and arithmetic methods to model uncertainty. Tekhnika i bezopasnost’ ob”yektov ugolovno-ispolnitel’noy sistemy : sbornik materialov Mezhdunarodnoy nauchno-prakticheskoy konferentsii, Voronezh, 17–18 maya 2023 goda
   [Technology and safety of penal facilities : collection of materials from the International scientific and practical conference, Voronezh, May 17–18, 2023]. Voronezh: FCOU Voronezh Institute of the Federal Penitentiary Service of Russia, Lines, 2023. Pp. 78–80. (In Russ.)
7. Men‘shix A. V., Men‘shix T. V. Modeling of partial uncertainty and incompleteness of data in management decision-making. Vestnik Voronezhskogo instituta MVD Rossii [Bulletin of the Voronezh Institute of the Ministry of Internal Affairs of Russia]. 2023. No 2. Pp. 132–137. (In Russ.)
8. Bessmertny I., Koroleva J., Sukhikh N., Vedernikov J. Ternary Logics in Decision Making. Reliability and Statistics in Transportation and Communication : Selected Papers from the 20th International Conference, Riga, 14–17 october 2020. Riga: Springer Nature, 2021. Pp. 411–419. DOI: 10.1007/978-3-030-68476-1_38.
9. Giniyatullin V. M., Gabitova E‘. A. Clustering of loan application data into a ternary vector. Elektrotekhnicheskiye i informatsionnyye kompleksy i sistemy [Electrical and information complexes and systems]. 2018. Vol. 14. No 1. Pp. 49–54. (In Russ.)
10. Filippov M. N. A method for processing incomplete data based on three-digit logic. Avtometriya [Autometry]. 2009. Vol. 45. No 5. Pp. 124–131. (In Russ.)
11. Libkin L. SQL’s Three-Valued Logic and Certain Answers. ACM Transactions on Database Systems. 2016. Vol. 41. No. 1. Article 1. Pp. 1–28. DOI: 10.1145/2877206
12. Kuzneczov S. D. Typed unknown values: a step towards solving the problem of representing missing information in relational databases. Trudy Instituta sistemnogo programmirovaniya RAN [Proceedings of the Institute of System Programming of the Russian Academy of
    Sciences]. 2023. Vol. 35. No 2. Pp. 73–100. DOI: 10.15514/ISPRAS2023-35(2)-6. (In Russ.)
13. Gabrielyan O. A., Vituleva E. S., Sulejmenov I. E. The prospects of using multivalued logics in artificial intelligence research : issues of visibility. Uchenyye zapiski Krymskogo federal’nogo
    universiteta imeni V. I. Vernadskogo. Filosofiya. Politologiya. Kul’turologiya [Scientific notes of the Crimean Federal University named after V. I. Vernadsky. Philosophy. Political science. Cultural studies]. 2021. Vol. 7 (73). No 1. Pp. 5–25. (In Russ.)
14. Galiev Sh. I. Matematicheskaya logika i teoriya algoritmov [Mathematical logic and theory of algorithms]. Kazan‘: A. N. Tupolev KSTU Publishing House, 2002. 270 p. (In Russ.)
15. Yablonskij S. V. Vvedenie v diskretnuyu matematiku : ucheb. posobie dlya vuzov [Introduction to Discrete Mathematics : a textbook for Universities]. Moscow: Higher education, 2008. 384 p. (In Russ.)
16. Gavrilov G. P., Capozhenko A. A. Zadachi i uprazhneniya po diskretnoy matematike : ucheb. posobiye [Problems and exercises in discrete mathematics : textbook]. Moscow: Physical education, 2005. 416 p. (In Russ.)
17. Tarannikov Yu. V. Discrete Mathematics. Problem Book : textbook for Universities. Moscow: Yurayt Publishing House, 2024. 385 p. Obrazovatel‘naya platforma Yurajt [sajt] [Yurayt educational platform [web-site]]. Available at: https://urait.ru/bcode/536541 (accessed:
    15.09.2024). (In Russ.)
18. Xaggarti R. Diskretnaya matematika dlya programmistov [Discrete Mathematics for Programmers]. Moscow: Technosphere, 2005. 400 p. (In Russ.)
19. Anderson D. A. Diskretnaya matematika i kombinatorika : per. s angl. [Discrete Mathematics and Combinatorics : transl. from english]. Moscow: Williams Publishing House, 2004. 960 p. (In Russ.)
20. Epp S. S. Discrete Mathematics with Applications. Cengage Learning. Boston, 2010. 984 p.
21. Console M., Guagliardo P., Libkin L. Do We Need Manyvalued Logics for Incomplete Information? IJCAI International Joint Conference on Artificial Intelligence. Macao, China, 10/08/19. 2019. Pp. 6141–6145. https://doi.org/10.24963/ijcai.2019/851.

For citation: Babikova N. N. Discrete mathematics for computer scientists: three-valued logic. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 3 (52), pp. 20−35.
(In Russ.) https://doi.org/10.34130/1992-2752_2024_3_20

III. On the formation of critical thinking of students of a technical university in mathematics classes

https://doi.org/10.34130/1992-2752_2024_3_36

Marija S. Parmuzina – Ukhta State Technical University, mparmuzina@ugtu.net

Marina G. Rocheva – Ukhta State Technical University.

Ekaterina A. Terenteva – Ukhta State Technical University.

Text

Abstract. Developed critical thinking is necessary for every person to improve the quality of life in the conditions of modern realities: a large information field, an increased number of fraudulent
schemes, widespread use of computer technology, a fast pace of life, etc. It is especially important for students to have developed critical thinking, since this category of the population is most susceptible to malevolent manipulation from the outside.

Keywords: students of technical universities, critical thinking, teaching mathematics.

References

1. Plotnikova N. F. Formirovanie kriticheskogo myshleniya studentov vuza v usloviyah komandnoj formy organizacii obucheniya : monografiya [Formation of critical thinking of university students in the conditions of the command form of the organization of education : monograph]. Kazan: Kazan University Press, 2015. 84 p. (In Russ.)
2. Barbashina E. V. Critical thinking in the system of higher education abroad. Idei i idealy [Ideas and ideals]. 2022. No 4–1. Pp. 120–136. (In Russ.)
3. Lisenkova A. D. Clusters of critical thinking skills of modern high school students. Pedagogika. Voprosy teorii i praktiki [Pedagogy. Questions of theory and practice]. 2023. No 5. Pp. 463–469. (In Russ.)
4. Manakova E. O., Manakov A. S., Zvereva T. S., Borodina A. A. Technology of critical thinking. Teoriya i praktika sovremennoy nauki [Theory and practice of modern science]. 2022. No 1 (79). Pp. 232–235. (In Russ.)
5. Maryukov A. M. Problem-based learning and the formation of critical thinking. Obrazovatel’naya politika [Educational policy]. 2022. No 4 (92). Pp. 56–64. (In Russ.)
6. Dewey J. Psihologiya i pedagogika myshleniya [Psychology and pedagogy of thinking] Transl. from English by N. M. Nikolskaya; edited by N. D. Vinogradov. Moscow: Publishing House of the Mir Association,202 p. (In Russ.)
7. Kluster D. Chto takoe kriticheskoe myshlenie? [What is critical thinking?] [Electronic resource]. Available at: http://testolog.narod.ru/Other15.html (accessed: 25.10.2024). (In Russ.)
8. Butenko A. V., Hodos E. A. Kriticheskoe myshlenie: metod, teoriya, praktika : uchebno-metodicheskoe posobie [Critical thinking: method, theory, practice : an educational and methodical manual]. Moscow: MIROS, 2002. 176 p. (In Russ.)
9. Rocheva M. G., Terenteva E. A. To the problem of memorizing educational information by students of a technical university. Kommunikatsii. Obshchestvo. Dukhovnost’ – 2023 : materialy XXIII Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Communications. Society. Spirituality – 2023 : materials of the XXIII International Scientific and Practical Conference]. Ukhta: UGTU. 2023. Pp. 244–249. (In Russ.)
10. Parmuzina M. S., Sokolova N. S. Informatization of teaching mathematics to students of technical fields. Vestnik NTsBZhD [Bulletin of Scientific Center for Life Safety]. 2024. No 1 (59). Pp 57–67. (In Russ.)
11. Derbush M. V., Skarbich S. N. Innovative approaches to the use of information technologies in the process of teaching mathematics. Nepreryvnoye obrazovaniye: XXI vek [Continuing education: XXI century]. 2020. Vol. 2 (30). Pp. 66–80. DOI: 10.15393/j5.art.2020.5689.
    (In Russ.)
12. Temyanikova V. A., Bairov B. B., Davashkin E. Y., Mushkaeva Z. D. The use of ICT in the process of teaching the academic disciplines “Life safety” and “Mathematics” (on the example
    of the system of secondary vocational education). Sovremennoye pedagogicheskoye obrazovaniye [Modern pedagogical education]. 2021. No 11. Pp. 223–226. (In Russ.)
13. Terenteva E. A., Rocheva M. G. Features of the use of digital technologies in teaching mathematics. Upravleniye ustoychivym razvitiyem toplivno-energeticheskogo kompleksa – 2023 : materialy IV Vserossiyskoy nauchno-prakticheskoy konferentsii [Management of sustainable development of the fuel and energy complex – 2023 : materials of the IV All-Russian scientific and practical conference]. Ukhta: UGTU, 2023. Pp. 45–49. (In Russ.)
14. Grambovskaya L. V., Badanina L. A. Problems of teaching mathematical statistics in a technical university using MS Excel. Mezhdunarodnyy nauchno-issledovatel’skiy zhurnal [International
    Scientific Research Journal]. 2022. No 7–3 (121). Pp. 118–122. (In Russ.)

For citation: Parmuzina M. S., Rocheva M. G., Terenteva E. A. On the formation of critical thinking of students of a technical university in mathematics classes. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 3 (52), pp. 36−51. (In Russ.) https://doi.org/10.34130/1992-2752_2024_3_36

IV. Teaching mathematics to foreign students at a pedagogical university

https://doi.org/10.34130/1992-2752_2024_3_52

Marina E. Sangalova – Arzamas branch of the National Research Lobachevsky State University of Nizhni Novgorod, smolyanka77@mail.ru

Svetlana V. Fedorova – Arzamas branch of the National Research Lobachevsky State University of Nizhni Novgorod, smolyanka77@mail.ru

Elvira V. Frolova – Arzamas branch of the National Research Lobachevsky State University of Nizhni Novgorod, smolyanka77@mail.ru

Text

Abstract. The article considers the problem of organizing the teaching of mathematics to foreign students of a pedagogical university. Approaches to solving the problems of adapting the
content of mathematical disciplines to the level of training of this category of students, as well as the features of the teaching methodology are discussed.

Keywords: higher education, mathematics education, international students, pedagogical university.

References

1. The popularity of educational programs of Russian pedagogical universities among foreign students has increased one and a half times over the past three years. Minprosveshcheniya Rossii: sayt [Ministry of Education of Russia: website]. 2021. May 27 [Electronic
   resource]. Available at: https://edu.gov.ru/press/3770/populyarnostobrazovatelnyh-programm-rossiyskih-pedvuzov-sredi-inostrannyhstudentov-v (accessed: 25.05.2024). (In Russ.)
2. O nacionalnih celyah razvitiya Rossiiskoi Federacii na period do 2030 goda i na perspektivu do 2036 god : ukaz Prezidenta RF ot 07.05.2024 № 309 [On the national development goals
   of the Russian Federation for the period up to 2030 and for the future up to 2036 : decree of the President of the Russian Federation dated 05/07/2024 No 309] [Electronic resource]. Available
   at: http://publication.pravo.gov.ru/document/0001202405070015 (accessed: 25.05.2024). (In Russ.)
3. Yakovleva E. V. Teaching mathematics to foreign students at the university based on a cognitive-visual approach Matematicheskiy vestnik Vyatskogo gosudarstvennogo universiteta [Mathematical Bulletin of Vyatka State University]. 2020. No 1. Pp. 84–93. (In Russ.)
4. Kochetkova I. V., Mumryaeva S. M., Egorchenko I. V. Features of the organization of independent work in teaching mathematics to foreign students at the university Pedagogicheskoe obrazovanie v Rossii [Pedagogical education in Russia]. 2018. No 8. Pp. 189–196. (In Russ.)
5. Fedorova S. V., Frolova E. V. Video content in the structure of the electronic educational course “Mathematics”. Sovremennye obrazovatel’nye web-tekhnologii v realizacii lichnostnogo potenciala obuchayushchikhsya : sbornik statej Mezhdunarodnoj nauchnoprakticheskoj konferencii “Sovremennye obrazovatelnye web-tekhnologii v realizacii lichnostnogo potenciala obuchayushchikhsya” [Modern educational web-technologies in the implementation of the personal potential of students : collection of articles from the International
   scientific and practical conference “Modern educational webtechnologies in the implementation of the personal potential of students”]. Arzamas: Arzamas branch of UNN, 2022. Pp. 288–292. (In Russ.)

For citation: Sangalova M. E., Fedorova S. V., Frolova E. V. Teaching mathematics to foreign students at a pedagogical university. Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics, 2024, No. 3 (52), pp. 52−65. https://doi.org/10.34130/1992-2752_2024_3_52

V. On the works of Ivan Alexandrovich Skopin (1900–1942), one of first students of Professor I. M. Vinogradov

https://doi.org/10.34130/1992-2752_2024_3_66

Vladimir P. Odyniec – W.P.Odyniec@mail.ru

Text

Abstract. The article deals with the works on number theory of Ivan Alexandrovich Skopin (1900–1942) against the background of the situation in the country in 20–30s.

Keywords: distribution of indices, prime module, primitive root, Euler function.

References

1. Nauka i nauchnye rabotniki SSSR. Chast V. Nauchnye rabotniki Leningrada : Spravochnik [Scientists of USSR. Part V. Scientists of Leningrad : handbook]. L.: Publishing House of the USSR Academy of Sciences, 1934. 723 p. (In Russ.)
2. Skopin I. A. About the distribution of indices in a prime module. Zh. Leningradskogo Fiz.-mat. obshchestva [Journal of Leningrad Physics and Mathematics society]. Vol. 2. Issue 1. 1928. Pp. 82–93. (In Russ.)
3. List of reports read at the Meetings of the Leningrad Physics and Mathematics Society from 1922 to 1927 Zh. Phiz.-mat.ob-va [Journal of the Physics and Mathematics society]. 1928. Vol. 1. Issue 2. Pp. 323–(In Russ.)
4. Na Leningradskom matematicheskom fronte. Sb. dokumentov Leningradskogo obshchestva matematikov-materialistov pri LOKa) [On the Leningrad Mathematical Front. Col. of documents of the Leningrad Society of Mathematicians-Materialists at the Leningrad Department of the Communist Academy]. Compiler L. A. Leifert. Leningrad: State social-economic publishing house, 1931. 44 p. (In Russ.)
5. Skopin I. A. On the distribution of fractional parts of a system of integer polynomials. Izvestya AN. Seria matematicheskaya [Proceedings of the USSR Academy of Sciences. Mathematical series].Pp. 547–560. (In Russ.)
6. Skopin I. A. On a System of Diophantine inequalities. Trudy 2- go Vsesouznogo matematicheskogo s’ezda. T. 2. Sekcionnye doklady [Proceedings of the 2nd All-Union Mathematical Congress. Vol. 2. Sectional pre- treasures]. Leningrad: Publishing House of the USSR Academy of Sciences, 1934. Pp. 17–19. (In Russ.)
7. Blokada. 1941–1944. Leningrad. Kniga pamyati. T. 27 (Sednev – Skorodumov) [Blockade. 1941–1944. Leningrad. Book of Memory. Vol. 27 (Sednev – Skorodumov)]. St. Petersburg: Publishing House of the Government of St. Petersburg, 2005. 712 p. (In Russ.)

For citation: Odyniec V. P. On the works of Ivan Alexandrovich Skopin (1900–1942), one of first students of Professor I. M. Vinogradov. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 3 (52), pp. 66−72. (In Russ.) https://doi.org/10.34130/1992-2752_2024_3_66

Full text

I. A coupled model of viscoelastic curing of a cylindrical product

https://doi.org/10.34130/1992-2752_2024_2_4

Nadezhda A. Belyaeva – Pitirim Sorokin Syktyvkar State University.

Ilya O. Mashin – Institute of Physics and Mathematics, Federal Research Centre Komi Science Centre, Ural Branch, RAS.

Text

Abstract. This work considers the formation of a hollow cylindrical product under the conditions of the coupled theory of thermoviscoelasticity. The study is a continuation of work on an “uncoupled” problem and includes consideration of the influence of an additive viscoelastic term in the thermal conductivity equation on the process of product formation. A mathematical model is constructed
and investigated. The finite difference method is used for numerical analysis. Graphical results of studies reflecting the distribution of temperature, polymerization depth and stress-strain state of the formed product are presented.

Keywords: coupled problem, thermoviscoelasticity, finite difference method, numerical analysis.

References

1. Demidov A. V. Mathematical models for predicting the deformation of polymer materials based on the integral Boltzmann – Volterra relations. Izvestiya vyshikh uchebnih zavedenii. Severo-Kavkazskii region. Tekhnicheskie nauki [News of higher educational institutions. The North Caucasus region. Technical sciences]. 2006. No 4 (136). Pp. 35–37. (In Russ.)
2. Kartashov E. M., Nagaeva I. A., Benevolenskiy S. B. Generalized model of thermoviscoelasticity in the theory of heat stroke. Vestnik MITHT im. M.V. Lomonosova [Moscow State University of
   Fine Chemical Technologies named after M. V. Lomonosov]. 2014. Vol. 9. No 3. Pp. 105–111. (In Russ.)
3. Orlov V. P. Investigation of the mathematical model of thermoviscoelasticity. Doklady Akademii nauk [Reports of the Academy of Sciences]. 1995. Vol. 343. No 3. Pp. 320–322. (In Russ.)
4. Oshmyan V. G., Patlazhan S. A., Remond Y. Principles of structural and mechanical modeling of polymers and composites. Vysokomolekulyarnie soedineniya. Seriya A [High molecular weight compounds. Series A]. 2006. Vol. 48. No 9. Pp. 1691–1702. (In Russ.)
5. Belyaeva N. A. Mathematical modeling of product curing under the conditions of the related theory of thermoviscoelasticity. Teoreticheskaya i prikladnaya mekhanika: mezdhunarodnyi nauchnothenicheskii sbornik [Theoretical and Applied Mechanics: an international scientific and technical collection]. Minsk: The Belarusian National Technical University, 2020. No 35. Pp. 139–145. (In Russ.)
6. Veselovskiy V. B., Syasev A. V. Mathematical modeling and solution of related problems of thermoviscoelasticity for two-phase bodies. Teoreticheskaya i prikladnaya mekhanika [Theoretical and applied mechanics]. 2002. No 35. Pp. 93–100. (In Russ.)
7. Belyaeva N. A., Klychnikov L. V. The method of the integral equation in the problem of volumetric curing. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 1996. No 2. Pp. 125–134. (In Russ.)
8. Lychev S. A. The related dynamic problem of thermoviscoelasticity. Izvestiya Rossiiskoi Akademii Nauk. Mekhanika tverdogo tela [Proceedings of the Russian Academy of Sciences. Solid State Mechanics]. 2008. No 5. Pp. 95–113. (In Russ.)
9. Landau L. D., Lifshitz E. M. Teoreticheskaya fizika : Uchebnoye posobiye : v 10 t. T. VI. Gidrodinamika [Theoretical physics : a textbook : in 10 vols. Vol. VI. Hydrodynamics]. 3rd ed., reprint. Moscow: Nauka, 1986. 736 p. (In Russ.)
10. Rabotnov Yu. N. Elementy nasledstvennoy mekhaniki tvordykh tel [Elements of hereditary mechanics of solids]. Moscow: Nauka, 1977. 384 p. (In Russ.)

For citation: Belyaeva N. A., Mashin I. O. A coupled model of viscoelastic curing of a cylindrical product. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 2 (51), pp. 4−13. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_4

II. Visualization of Numerical Calculations with Python

https://doi.org/10.34130/1992-2752_2024_2_14

Anatolij A. Durkin – Pitirim Sorokin Syktyvkar State University

Andrey. V. Yermolenko – Pitirim Sorokin Syktyvkar State University, ea74@list.ru

Nadezhda O. Kotelina – Pitirim Sorokin Syktyvkar State University

Oksana. I. Turkova – Pitirim Sorokin Syktyvkar State University

Text

Abstract. The simplicity of the syntax and the large number of Python libraries make it an indispensable tool for conducting laboratory work on a number of subjects, simplifying routine
operations when visualizing numerical calculations. In the article, the authors show examples of using Python libraries for plotting surfaces and interpolation curves, animating numerical methods.

Keywords: Python, visualization, numerical experiment, animation.

References

1. Bakunova O. M., Burkin A. V., Protko D. E. at al. Data visualisation with .NET F#. Web of Scholar. 2018. Vol. 1. No 4 (22). Pp. 19–22. (In Russ.)
2. Bondarev A., Galaktionov V. Modern development directions of data visualization in computational mechanics of fluid and gase. Nauchnaya vizualizatsiya [Science visualisation]. 2013. Vol. 5. No 4. Pp. 18–30. (In Russ.)
3. Akberova N. I., Kozlova O. S. Osnovy analiza dannyh i programmirovaniya v R : uchebno-metodicheskoe posobie [Fundamentals of data analysis and programming in R : a textbook]. Kazan’: Al’yans,33 p. (In Russ.)
4. Egoshin V. L., Ivanov S. V., Savvina N. V. at al. Visualization of biomedical data using the R software environment. Ekologiya cheloveka [Human ecology]. 2018. No 8. Pp. 52–64. (In Russ.)
5. Yermolenko A. V., Osipov K. S. On using Python libraries to calculate plates. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 2019. No 4 (33).
   Pp. 86–95. (In Russ.)
6. D’yakonov, V. P. Maple 9.5/10 v matematike, fizike i obrazovanii [Maple 9.5/10 in mathematics, physics and education]. Moscow: SOLON-PRESS, 2006. 720 p. (In Russ.)
7. Golovanov N. N. Geomyetricheskoe modelirovaniye [Geometry modeling]. Moscow: Izdatyelstvo Phisiko-matematicheskoy lityeratury [Publishing House of physical and mathematical literature], 2002. 472 p. (In Russ.)
8. Piegl L., Tiller W. The NURBS Book. Monographs in Visual Communications. New York: Springer, 1995. 646 p.

For citation: Durkin A. A., Yermolenko A. V., Kotelina N. O., Turkova O. I. Visualization of Numerical Calculations with Python. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 2 (51), pp. 14−26. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_14

III. What is a semimodule

https://doi.org/10.34130/1992-2752_2024_2_27

Evgeny M. Vechtomov – Vyatka State University, vecht@mail.ru

Text

Abstract. The article deals with the beginnings of the theory of semimodules over a semiring. It considers initial properties and formulates some structure theorems about semimodules. The material is of a mathematical and methodological nature and includes a system of educational exercises.

Keywords: a semimodule over а semiring, study of the theory of semirings and semimodules.

References

1. Vechtomov E. M. What is a semiring. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics],No 1 (50). Pp. 21–42. https://doi.org/10.34130/1992-2752_2024_1_21. (In Russ.)
2. Vechtomov E. M. Vvedeniye v polukol’tsa [Introduction to Semirings]. Kirov: Izd-vo vyatsk. gos. ped. un-ta. 2000. 44 p. (In Russ.)
3. Vechtomov E. M., Lubyagina E. N., Chermnykh V. V. Elementy teorii polukolets : monografiya [Elements of the theory of semirings : monograph]. Kirov: Izdatelstvo OOO «Raduga-PRESS». 2012. 228 p. (In Russ.)
4. Golan J. S. Semirings and their applications. Dordrecht: Kluwer Academic Publishers, 1999. 382 p.
5. Vechtomov E. M. Two general structure theorems about semimodules. Abelevy gruppy i moduli [Abelian groups and modules].Vol. 15. Pp. 17–23. (In Russ.)
6. Vechtomov E. M. On three radicals for semimodules. Vestnik Vyatskogo gosudarstvennogo gumanitarnogo universiteta [Bulletin of Vyatka State University of Humanities]. 2005. No 13. Pp. 148–151. (In Russ.)
7. Vechtomov E. M., Shirokov D. V. Uporyadochennyye mnozhestva i reshetki : uchebnoye posobiye [Ordered sets and lattices : study guide]. Sankt-Peterburg: Lan’. 2024. 248 p. (In Russ.)
8. Vechtomov E. M., Petrov A. A. Funktsionalnaya algebra i polukoltsa. Polukoltsa s idempotentnym umnozheniyem : uchebnoye posobiye [Functional algebra and semirings. Semirings with idempotent multiplication : study guide]. Sankt-Peterburg: Lan’. 2022. 180 p.
   (In Russ.)
9. Vechtomov E. M., Lubyagina E. N. Lineynaya algebra : uchebnoye posobiye dlya vuzov. 2-e izd. [Linear algebra : a study guide for universities. 2nd ed.]. Moscow: Urait. 2019. 150 p. (In Russ.)

For citation: Vechtomov E. M. What is a semimodule. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics.
Mechanics. Informatics], 2024, no 2 (51), pp. 27−43. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_27

IV. One example of studying abstract algebra methods in mathematic degree programs

https://doi.org/10.34130/1992-2752_2024_2_44

Olga A. Sotnikova – Pitirim Sorokin Syktyvkar State University, sotnikovaoa@syktsu.ru

Vasilij V. Chermnykh – Pitirim Sorokin Syktyvkar State University

Text

Abstract. The article addresses some techniques which are instrumental for outlining abstract algebra methods when exploring some subject matters within the algebra course. As exemplified
in such chapters as Substitution, Complex Numbers, Matrices and Polynomials, the phenomena considered in these theories are shown to detect connections which offer the possibility to characterize the objectivity of the elements of the sets under consideration, the procedural nature of the interpretation of algebraic operations, and also the formalized nature of the properties of algebraic operations. According to the authors, the conditions mentioned can be used to illustrate the methods of abstract algebra.

Keywords: algebra course, math teacher training, abstract algebra, conceptual connections, formalization.

References

1. Yashina E. Yu. Dokazatel’stvo teoremy Frobeniusa kak zavershenie kursa algebry i chislovyk sistem v pedagogicheskom universitete. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 2023. No 2 (47). Pp. 69–82. (In Russ.)
2. Fried E. Elementarnoe vvedenie v abstraktnuyu algebru [An Elementary Introduction to Abstract Algebra]. Perevod s vengerskogo Yu. A. Danilova. Moscow: Mir, 1979. 260 p. (In Russ.)
3. Sotnikova O. A., Chermnykh V. V. On attracting students to study abstract algebra (using the example of one problem in group theory and its applications). Psihologiya obrazovaniya v polikul’turnom prostranstve [Psychology of education in a multicultural space]. 2024. No 2 (66). Pp. 138–147. (In Russ.)
4. Sotnikova O. A. Tselostnost’ vuzovskogo kursa algebry kak metodologicheskaya osnova ego ponimaniya : monografiya [The integrity of a university algebra course as a methodological basis for its understanding : monograph]. Arhangel’sk: Pomorskiy universitet,356 p. (In Russ.)

For citation: Sotnikova O. A., Chermnykh V. V. One example of studying abstract algebra methods in mathematic degree programs. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika.
Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 2 (51), pp. 44−56. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_44

V. About the works of three mathematicians graduates of Kazan and St. Petersburg universities who died in the Great Patriotic War

https://doi.org/10.34130/1992-2752_2024_2_57

Vladimir P. Odyniec – W.P.Odyniec@mail.ru

Text

Abstract. The article describes the works of two deceased graduates of Kazan University Marachkov (Morochkov) Vasyly Petrovich (1914–1942), Shishkanov Vasily Stepanovich (1914–1941) as well as graduate of the Imperial St. Petersburg University Zinserling Dmitry Petrovich (1864–1941) who died of starvation in besieged Leningrad.

Keywords: almost periodic function, characteristic number, stability of integrals, stability of the system of differential equations, prismatic rod bending, solving of plane problem of elasticity theory, elementary algebra, geometry of the ancient Egyptians, arithmetic of the ancient Egyptians.

References

1. Marachkov V. P. Stability of integrals of a system of differential equations with almost periodic coefficients. Izv. Phiz.-mat. o-va [Izv. Phys.-math. society]. Kazan, 1945. (3), 13. Pp. 3–50. (In Russ.)
2. Kniga pamyati Kazanskogo universiteta [Kazan University Memorial Book]. Kazan: Kazan University Publishing House, 2010. 124 p. (In Russ.)
3. Shishkanov V. S. Bending a Prizmatic Rod in Pairs. Uchenye zap. universiteta [University Sci. Notes]. Kazan, 1949. 109:3. Pp. 39–61. (In Russ.)
4. Zvolinsky N. V., Riz P. M. On Some Problems of the Nonlinear Theory of Elastcity. Prikl. mat. mechan. [Appl. Math. Mech.]. 1939. Vol. II. Issue 4. Pp. 417–428. (In Russ.)
5. Matematika v SSSR za sorok let 1917–1957. T. 2. Biobibliografiya [Mathematics in the USSR for forty years 1917–1957. Vol. 2. Biobibliography]. Moscow: Phizmatlit, 1959. 819 p. (In Russ.)
6. Zinserling V. A. Zinzerlings [Zinserlings]. Moscow: Prakticheskaya medicina, 2023. 120 p. (In Russ.)
7. Zinserling D. P. Prakticheskoye rukovodstvo statistiki [A Practical Guide to Statistics]. Leningrad: Gosizdat, 1924 (cover 1925). 167 p. (In Russ.)
8. Vulf N., Zinserling D. Elementarnaya algebra [Elementary Algebra]. St. Petersburg: Tip. A. S. Suvorina, 1912. 344 P. (Reprints in 1916 and 1923). (In Russ.)
9. Zinserling D. P. Geometry in the Ancient Egyptians. Izvestiya Rossiiskoi academii nauk. VI ser. [News of the Russian Academy of Sciences. VI series]. Leningrad: Izd-vo AN, 1925. Vol. 19. Issue 12. Pp. 541–568. (In Russ.)
10. Nauchnyye rabotniki Leningrada [Scientists of Leningrad]. Leningrad: Izd-vo AN USSR, 1934. 721 p. (In Russ.)
11. Zinserling D. P. Mathematics in the Ancient Egyptians. Matematika v shkole [Mathematics at school]. 1939. No 2. Pp. 5–20. (In Russ.)
12. Zinserling D. P. Mathematics in the Ancient Egyptians. Matematika v shkole [Mathematics at school]. 1939. No 3. Pp. 3–15. (In Russ.)
13. Kniga pamyati. Leningrad 1941–1945 [Memorial Book. Leningrad 1941–1945]. St. Petersburg: Pravitelstvo St. Peterburga, 2006. Bd.33. 712 p. (In Russ.)

For citation: Odyniec V. P. About the works of three mathematicians graduates of Kazan and St. Petersburg universities who died in the Great Patriotic War. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 2 (51), pp. 57−72. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_57

VI. Metaheuristic algorithms for the traveling salesman problem. Python library Scikit-opt

https://doi.org/10.34130/1992-2752_2024_2_73

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University

Mikhail M. Glukhoy – Pitirim Sorokin Syktyvkar State University

Evgenija N. Startseva – Pitirim Sorokin Syktyvkar State University

Nikita A. Chernyan – Pitirim Sorokin Syktyvkar State University

Text

Abstract. The article discusses metaheuristic methods for solving the traveling salesman problem. The results of testing the ant colony algorithm and the genetic algorithm of the Python Scikit-opt library on two data sets (benchmarks) of the popular and widely used TSPLIB library are presented. Testing showed the possibility of using the library in practice and in the educational process: solutions close to optimal were obtained in an acceptable time.

Keywords: Python, Scikit-opt, TSPLIB, genetic algorithm, ant colony algorithm.

References

1. Zaporozhets D. Yu. Combined algorithm for solving transcomputational problems. Informatika, vychislitel’naya tekhnika i inzhenernoye obrazovaniye [Informatics, computing and engineering
   education]. 2018. No 1 (32). Pp. 10–20. (In Russ.)
2. Kobak V. G., Porksheyan V. M., Zhukovsky A. G., Peshkevich A. A. Solving the traveling salesman problem with a hybrid genetic model using the path approach. Izvestiya vuzov. SeveroKavkazskiy region. Seriya: Tekhnicheskiye nauki [News of universities. North Caucasus region. Series: Technical Sciences]. 2017. No 2 (194). Pp. 5–9. DOI: 10.17213/0321-2653-2017-2-5-9. (In Russ.)
3. Shcherbina O. A. Metaheuristic algorithms for combinatorial optimization problems (review). TVIM [TWIM]. 2014. No 1 (24). Pp. 56–72. (In Russ.)
4. Yashin S. N., Yashina N. I., Koshelev E. V., Ivanov A. A. Metaevristicheskiye algoritmy v upravlenii innovatsiyami : monografiya [Metaheuristic algorithms in innovation management :
   monograph]. Nizhniy Novgorod: LLC “Printing Workshop RADONEZH 2023. 200 p. (In Russ.)
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   optimal program control : textbook]. Moscow: Infra-M, 2020. 396 с. (In Russ.)
6. Using the Bees Algorithm to solve combinatorial optimisation problems for TSPLIB. IOP Conference Series Materials Science and Engineering. May 2020 847:012027 DOI:10.1088/1757-899X/847/1/012027 Available at: https://www.researchgate.net/publication/341711573_Using_the_ Bees_Algorithm_to_solve_combinatorial_optimisation_problems_ for_TSPLIB (accessed: 27.05.2024).
7. Aco-routing documentation. Available at: https://pypi.org/project/aco-routing/ (accessed: 21.04.2024).
8. ACO documentation. Available at: https://pypi.org/project/aco/(accessed: 21.04.2024).
9. Pygad documentation. Available at: https://pypi.org/project/pygad/(accessed: 21.04.2024).
10. DEAP documentation. Available at: https://pypi.org/project/deap/(accessed: 21.04.2024).
11. Scikit-opt documentation. Available at: https://scikitopt.github.io/scikit-opt//en/README (accessed: 21.04.2024).
12. Reinelt G. TSPLIB95. Available at: http://comopt.ifi.uniheidelberg.de/software/TSPLIB95/tsp95.pdf (accessed: 21.04.2024).
13. Discrete and Combinatorial Optimization. Available at: http://comopt.ifi.uni-heidelberg.de/software/TSPLIB95/tsp/ (accessed: 21.04.2024).
14. TSPLIB95 documentation. Available at: https://tsplib95.readthedocs.io/en/stable/pages/usage.html (accessed: 21.04.2024).
15. Andreev A. M., Shtutsa I. M. Study of the computational (time) complexity of a genetic algorithm using the example of solving the traveling salesman problem. Vestnik Izhevskogo gosudarstvennogo tekhnicheskogo universiteta [Bulletin of Izhevsk State Technical University]. 2008. No 4 (40). Pp. 144–146. (In Russ.)

For citation: Babikova N. N., Glukhoy M. M., Startseva E. N., Chernyan N. A. Metaheuristic algorithms for the traveling salesman problem. Python library Scikit-opt. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 2 (51), pp. 73−88. (In Russ.) https://doi.org/10.34130/1992-2752_2024_2_73

Full text

I. Development of a web service for automating the process of professional development for employees of government organizations based on the generation of individual educational routes

https://doi.org/10.34130/1992-2752_2024_1_4

Yuriy V. Golchevskiy – Pitirim Sorokin Syktyvkar State University, yurygol@mail.ru

Artem S. Garmatko – LLC “Philosophy IT”, garmatko.art@mail.ru

Text

Abstract. Thе paper presents a study of the problem of creating a web service for automating control over the professional development of employees process using the example of a state agencies working in the field of art and culture. An approach has been used that implies
individual training routes generation containing sets of courses, as a result of which the employee will receive all the necessary competencies. At the same time, the process becomes completely
controlled by the employer, who also has the opportunity to form and/or confirm an individual employee training route and track the progress.

Keywords: professional development, individual educational route, automation, web resource.

References

1. Golchevskiy Yu., Novokshonova E., Yermolenko A. Digital economy competencies as a vital necessity of a modern successful specialist. Advances in Economics, Business and Management Research.Vol. 156. Pp. 291–296. DOI: 10.2991/aebmr.k.201205.048.
2. Galkin O. A. Professional development in the system of lifelong professional education in the sphere of culture: the role and issues of content. Problemy i perspektivy razvitiya vysshego obrazovaniya v sfere kul’tury i iskusstv [Problems and prospects for the development
   of higher education in the field of culture and the arts]. Proc. of the scientific and methodological conference of the educational institution teaching staff. Minsk: The Belarusian State University of Culture and Arts, 2023. Pp. 103–111. EDN: PCPNDH. (In Russ.)
3. Babikova N. N. Education in the digital age: remember or google. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 2022. No 3 (44). Pp. 33–46. DOI:
   10.34130/1992-2752_2022_3_33. (In Russ.)
4. Normansky N. S. Gamification as a Mechanism of Digital Transformation of Personnel Training in the Field of Culture and Art. Kul’turnaya zhizn’ Yuga Rossii [Cultural Studies of Russian South].No 1 (84). Pp. 101–110. DOI: 10.24412/2070-075X-2022-1-101-(In Russ.)
5. Karavaev N. L., Soboleva E. V. Analysis of software services and platforms that have the potential for educational process gamification.Nauchno-metodicheskiy elektronnyy zhurnal «Kontsept» [Scientific and methodological electronic journal “Concept”]. 2017. No 8. Pp. 14–25.
   EDN: ZEGUJZ.(In Russ.)
6. Golchevskiy Yu. V., Babenko V. V. Problems of gaming technologies introducing into business processes and interfaces of business-oriented software systems. Informatsionnyye tekhnologii v
   modelirovanii i upravlenii: podkhody, metody, resheniya: sbornik nauchnykh statey I Vserossiyskoy nauchnoy konferentsii. 12–14 dekabrya 2017 g.: v 2 ch. [Information technologies in modeling and management: approaches, methods, solutions: collection of scientific articles of the I All-Russian Scientific Conference. December 12–14,
   2017: at 2 a.m.]. Tolyatti: TSU, 2017. Part 2. Pp. 318–324. EDN: YWGOJL. (In Russ.)
7. Zeybek N., Saygı E. Gamification in Education: Why, Where, When, and How? – A Systematic Review. Games and Culture. 2024. Vol. 19. Issue 2. Pp. 237–264. DOI: 10.1177/15554120231158625.
8. Oliveira W., Hamari J., Shi L. et al. Tailored gamification in education: A literature review and future agenda. Education and Information Technologies. 2023. Vol. 28. Pp. 373–406. DOI:
   10.1007/s10639-022-11122-4.
9. Tatarova S. P., Zateeva N. A. Experience of organizing professional upgrading courses of cultural workers as the implementation of informal education principles. Vestnik Vostochno-Sibirskogo gosudarstvennogo instituta kul’tury [Bulletin of the East Siberian State Institute of
   Culture]. 2019. No 3 (11). Pp. 127–133. DOI: 10.31443/2541-8874-2019- 3-11-127-133. (In Russ.)
10. Dorofeeva E. V. Professional retraining for the cultural sphere of the region: problems and prospects. Obrazovaniye i obshchestvo [Education and Society]. 2019. No 3 (116). Pp. 72–80. EDN: VDEPEQ. (In Russ.)
11. Novikova T. B. Modeling RUP: Collaboration, class, activity, sequence, use case diagrams. Mezhdunarodnyy zhurnal eksperimental’nogo obrazovaniya [International Journal of
    Experimental Education]. 2017. No 1. Pp. 74–78. EDN: XVGSSD. (InRuss.)
12. Kochnev A. A. Web Development with PHP and Laravel framework. Vostochno-Yevropeyskiy nauchnyy zhurnal [East European Scientific Journal]. 2023. No 1 (86). Pp. 4–11. EDN: XNGITS. (In Russ.)
13. Chavan P. R., Pawar S. Comparison Study Between Performance of Laravel and Other PHP Frameworks. International Journal of Research in Engineering, Science and Management. 2021. Vol. 4. Issue 10. Pp. 27–29.
14. Taipalus T. Database management system performance comparisons: A systematic literature review. Journal of Systems and Software. 2024. Vol. 208. 111872. DOI: 10.1016/j.jss.2023.111872.

II. What is a semiring

https://doi.org/10.34130/1992-2752_2024_1_21

Evgeny M. Vechtomov – Vyatka State University, vecht@mail.ru

Text

Abstract. The article discusses the beginnings of the theory of semirings. The author analyzes the definition (axiomatics) of a semiring and introduces the initial concepts of the theory of
semirings. The work provides basic examples, indicates the most important classes of semirings, and also formulates the first structure theorems about semirings. The presented material is educational and mathematical in nature, includes comments, explanations and 25 exercises.

Keywords: algebraic structure, semiring, study of the theory of semirings

References

1. Vechtomov E. M. Vvedeniye v polukol’tsa [Introduction to Semirings]. Kirov: Izd-vo vyatsk. gos. ped. un-ta, 2000. 44 p. (In Russ.)
2. Vechtomov E. M. Student educational and research seminar on algebra. Matematicheskiy vestnik Vyatskogo gosudarstvennogo universiteta [Mathematical Bulletin of Vyatka State University]. 2021. No 3. Pp. 36–45. (In Russ.)
3. Vechtomov E. M. Studying the basics of the theory of semirings. Prime Ideals. Matematicheskiy vestnik Vyatskogo gosudarstvennogo universiteta [Mathematical Bulletin of Vyatka State University]. 2021. No 4. Pp. 4–14. (In Russ.)
4. Vechtomov E. M. Matematika: osnovnyye matematicheskiye struktury: uchebnoye posobiye. 2-e izd. [Mathematics: basic mathematical structures: study guide. 2nd ed.]. Moscow: Urait.296 p. (In Russ.)
5. Vechtomov E. M., Sidorov V. V. Abstraktnaya algebra. Bazovyy kurs : uchebnoye posobiye [Abstract algebra. Basic course : study guide]. Kirov: OOO «Izdatelstvo “Raduga-PRESS”», 2014. 260 p. (In Russ.)
6. Sidorov V. V. Algebra: algebraicheskiye struktury. kompleksnyye chisla. mnogochleny : uchebnoye posobiye [Algebra: algebraic structures, complex numbers, polynomials : study guide]. Kirov: OOO «Izdatelstvo “Raduga-PRESS”», 2013. 232 p. (In Russ.)
7. Vechtomov E. M., Lubyagina E. N., Sidorov V. V., Chuprakov D. V. Elementy funktsionalnoy algebry: monografiya: v 2 t. [Elements of functional algebra: monograph: in 2 vol.]. Kirov: OOO
   «Izdatelstvo “Raduga-PRESS”», 2016. Vol. 1. 384 p. (In Russ.)
8. Vechtomov E. M., Lubyagina E. N., Chermnykh V. V. Elementy teorii polukolets: monografiya [Elements of the theory of semirings: monograph]. Kirov: OOO «Izdatelstvo “Raduga-PRESS”», 2012. 228 p.(In Russ.)
9. Vechtomov E. M., Petrov A. A. Funktsionalnaya algebra i polukoltsa. Polukoltsa s idempotentnym umnozheniyem : uchebnoye posobiye [Functional algebra and semirings. Semirings with idempotent multiplication : study guide]. Sankt-Peterburg: Lan’, 2022. 180 p.
   (In Russ.)
10. Vechtomov E. M., Cheraneva A. V. Semifields and their properties. Fundamentalnaya i prikladnaya matematika [Fundamental and applied mathematics]. 2008. Vol. 14. No 5. Pp. 3–54. (In Russ.)
11. Vechtomov E. M., Chermnykh V. V. Main directions of development of the theory of semirings. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin
    of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 2021. No 4. Pp. 4–40. (In Russ.)
12. Chermnykh V. V. Functional representations of semirings. Fundamentalnaya i prikladnaya matematika [Fundamental and applied mathematics]. 2012. Vol. 17. No 3. Pp. 111–227. (In Russ.)
13. Golan J. S. Semirings and their applications. Dordrecht: Kluwer Academic Publishers, 1999. 382 p.
14. Vechtomov E. M. We are introduced to abstract algebra: semigroups. Nauchno-metodicheskiy elektronniy zhurnal «Kontsept» [Scientific and methodological electronic journal «Concept»]. 2014. No 12. Pp. 61–65.Available: https://e-koncept.ru/2014/14335.htm (accessed: 20.01.2024).
    (In Russ.)
15. Vandiver H. S. Note on a simple type of algebra in which thecancellation law of addition does not hold. Bulletin of the American Mathematical Society. 1934. Vol. 40. No 12. Pp. 914–920.
16. Vechtomov E. M., Shirokov D. V. Uporyadochennyye mnozhestva i reshetki : uchebnoye posobiye [Ordered sets and lattices : study guide]. Sankt-Peterburg: Lan’, 2024. 248 p. (In Russ.)
17. Gr¨atzer G. Obshchaya teoriya reshetok [General Lattice Theory]. Moscow: Mir, 1982. 456 p. (In Russ.)
18. Mal’tsev A. I. Algebraicheskiye sistemy [Algebraic systems]. Moscow: Nauka, 1970. 392 p. (In Russ.)

For citation: Vechtomov E. M. What is a semiring. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics.
Mechanics. Informatics], 2024, no 1 (50), pp. 21−42. (In Russ.) https://doi.org/10.34130/1992-2752_2024_1_21

III. About one of the axiomatics for determining trigonometric functions when training future mathematics teachers

https://doi.org/10.34130/1992-2752_2024_1_43

Elena N. Shustova – Pitirim Sorokin Syktyvkar State University, shustovaen@yandex.ru

Text

Abstract. The article outlines the main theoretical principles of the methodology for teaching future mathematics teachers at a university the definition of trigonometric functions using one of the
axiomatics. The sequence of studying the properties of functions and axioms of the proposed system is given, as well as a brief description of the results of applying the described approach in the process of training students in pedagogical areas of university training.

Keywords: axiomatic method, trigonometric functions, university training for future mathematics teachers

References

1. Sadovsky V. N. Axiomatic method of constructing scientific knowledge. Filosofskie voprosy sovremennoy formal’noy logiki. M.: Izdvo Akademii nauk SSSR [Philosophical issues of modern formal logic. M.: Publishing House of the USSR Academy of Sciences]. 1962. Pp. 215–(In Russ.)
2. Masalova S. I. The role of axiomatization in the process of constructing a mathematical theory. Vestnik DGTU [Bulletin of DSTU].
3. No 3. Pp. 71–77. Available: https://cyberleninka.ru/article/n/rolaksiomatizatsii-v-protsesse-postroeniya-matematicheskoy-teorii (accessed: 08.02.2024). (In Russ.)
4. Popov N. I., Shustova E. N. Application of the axiomatic method for introducing the exponential function when training future mathematics teachers. Vestnik Moskovskogo gosudarstvennogo
   oblastnogo universiteta. Seriya: Pedagogika [Bulletin of Moscow State Regional University. Series: Pedagogy]. 2020. No 3. Pp. 86–94. (In Russ.)
5. Lyubetsky V. A. Osnovnye ponyatiya shkol’noy matematiki : uchebnoye posobie dlya studentov ped. in-tov po spec. № 2104 “Matematika” [Basic concepts of school mathematics : Proc. manual for pedagogical students. Institute for specialties No 2104 “Mathematics”]. Moscow: Prosveshchenie, 1987. 400 p. (In Russ.)
6. Lihtarnikov L. M. Elementarnoe vvedenie v funkcional’nye uravneniya: kn. dlya nachinayushchih izuchat’ funkzion. uravneniya i prepodavateley [Elementary introduction to functional equations: book. for beginners to learn functions. equations and teachers]. SPB.: Lan’,158 p. (In Russ.)
7. Ilyin V. A., Sadovnichy V. A., Sendov Bl. X. Matematicheskiy analiz : v 3 t. T. 1: Nachal’nyj kurs: uchebnik dlya studentov vuzo, obuchayushchihsya po special’nosti “Matematika”, “Prikladnaya
   matematika” [Mathematical analysis : in 3 volumes. T. 1: Initial course: textbook for university students studying in the specialty “Mathematics”, “Applied Mathematics”]. Pod red. A. N. Tihonova. 2-e izd., pererab. Moscow: Izd-vo MGU, 1985. 660 p.
8. Korobeinikov A. I. Functional equations and their applications Molodye issledovateli – Respublike Komi: sbornik tezisov Pyatoy respublikanskoy nauchno-prakticheskoy konferencii. Syktyvkar: MO i VSh Respubliki Komi, SGU [Young researchers – the Komi Republic:
   collection of abstracts of the Fifth Republican Scientific and Practical Conference]. Syktyvkar: Moscow Region and Higher School of the Komi Republic, SGU, 2002. Pp. 34–41 (In Russ.)
9. Alexyuk V. N., Shustova E. N. Elementarnye funkcii. 2 [Elementary functions. 2]. Ped. in-t. Syktyvkar, 2010. 12 p. Dep v VINITI 25.10.2010, no 610-B2010 (In Russ.)
10. Alexyuk V. N. Elementarnye funkcii. 1 [Elementary functions. 1]. Ped. in-t. Syktyvkar, 2010. 13 p. Dep v VINITI 11.10.2010, no 577- B2010 (In Russ.)
11. Shustova E. N. Methodology for presenting the course “Theory of elementary functions”. Vestnik KGPI [Bulletin of KSPI]. Syktyvkar: Komi Pedagogical Institute, 2010. Pp. 268–270. (In Russ.)
12. Shustova E. N. Features of using the axiomatic method of introducing elementary functions in teaching future teachers of mathematics at the university. Obrazovatel’nyj vestnik “Soznanie” [Educational Bulletin “Consciousness”]. 2022. Vol. 24. No 4. Pp. 23–30. (In Russ.)
13. Shustova E. N. Formation of components of methodological competence of mathematics teachers when studying the axiomatic method of introducing elementary functions at a university. Mir nauki, kul’tury, obrazovaniya [World of science, culture, education]. 2022.
    No 3 (94). Pp. 78–81. (In Russ.)
14. Popov N. I., Shustova E. N. Elementarnye funkcii v shkol’nom kurse matemayiki : uchebnoe posobie. 2-e izd., ispr. i dop. [Elementary functions in a school mathematics course : a textbook. 2nd ed., rev. and additional]. Syktyvkar: Izd-vo SGU im. Pitirima Sorokina, 2023. 165 p.
    (In Russ.)

For citation: Shustova E. N. About one of the axiomatics for determining trigonometric functions when training future mathematics teachers. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 1 (50), pp. 43−54. (In Russ.) https://doi.org/10.34130/1992-2752_2024_1_43

IV. Computer games and combinatorial problems

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University, valmasha@mail.ru

Nadezhda O. Kotelina – Pitirim Sorokin Syktyvkar State University, valmasha@mail.ru

Marija A. Valueva – St. Petersburg State University of Culture

Nikolaj A. Startsev – St. Petersburg State Electrotechnical University “LETI” named after V. I. Ulyanov (Lenin)

Text

Abstract. The author’s problems in combinatorics, based on computer games, are offered for discussion in the article. Examples of problems for practical classes and laboratory work are presented on the following topics: sum and product rules, permutations with and without repetitions, placements with and without repetitions, combinations with and without repetitions, partitioning a number into terms and partitioning a number into terms, each of which does
not exceed given value, inclusion and exclusion formula. The problems were tested in the process of teaching the discipline “Discrete Mathematics” to students in the field of study “Applied Informatics”.

Keywords: combinatorics, combinatorial problems, computer games, training, author’s problems

References

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   10.1080/10609393.2017.1408370.
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6. Babikova N. N. Aligning assessment methods with learning outcomes based on taxonomy. Obrazovaniye i pedagogicheskiye nauki v XXI veke: aktual’nyye voprosy, dostizheniya i innovatsii : sbornik statey II Mezhdunarodnoy nauchno-prakticheskoy konferentsii : v 2 chastyah
   [Education and pedagogical science in the XXI century: current issues, achievements and innovations : collection of articles of the international scientific and practical conference : in 2 parts]. Penza, 2017. Part. 1. Pp. 93–100. (In Russ.)
7. Babikova N. N. Education in the digital age: remember or google Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 2022. No 3 (44). Pp. 33–46. DOI
   10.34130/1992-2752_2022_3_33.(In Russ.)
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9. Patrashov A. S. Application of higher mathematics in computer game design. Sistemnyy administrator [System Administrator]. 2020. No 5 (210). Pp. 46–49. (In Russ.)

For citation: Babikova N. N., Kotelina N. O., Valueva M. A., Startsev N. A. Computer games and combinatorial problems. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika.
Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 1 (50), pp. 55−72. (In Russ.) https://doi.org/10.34130/1992-2752_2024_1_55

V. Educational and innovative potential of network interaction between organizations using the example of the development of research and project activities of students

https://doi.org/10.34130/1992-2752_2024_1_73

Irina V. Kleshcheva – Herzen State Pedagogical University of Russia, iv-kl@list.ru

Abstract. The article examines the substantive, organizational, and functional problems of implementing network interaction in the field of education. The timeliness and effectiveness of network interaction as a tool for integrated and effective solution of various problems in education is argued. The pedagogical feasibility of using network interaction to improve the quality of mathematics education has been scientifically substantiated and experimentally confirmed.
The methodological basis of network educational interaction is motivated by a systematic approach that determines the design and functioning of the educational network at the conceptual, structural
and elemental levels. The system-forming factor in this case is most often common goals, for the sake of which pedagogical efforts are consolidated.

Keywords: networking, systems approach, research activities, project activities, quality of mathematical education

References

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   universities]. Moscow: Yurayt, 2021. 241 p. (In Russ.)
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   Petersburg, January 28, 2021]. Editors: A. A. Akhayan, E. V. Piskunova; Letters to The Emissia. Offline Letters. St. Petersburg: Publishing House of the Russian State Pedagogical University named after A. I. Herzen, 2021. Vol. 2: Methodological application. 127 p. (In
   Russ.)
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   Pedagogy and psychology]. 2012. Pp. 33–38. (In Russ.)
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   276/ (accessed: 16.02.2024). (In Russ.)
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   obshchego obrazovaniya: prikaz Minprosveshcheniya Rossii ot 31 avgusta 2023 g. № 650 [On approval of the Procedure for implementing activities for professional guidance of students in
   educational programs of basic general and secondary general education: Order of the Ministry of Education of Russia dated August 31, 2023 No 650] [Electronic resource]. Available at:
   https://docs.edu.gov.ru/document/53d3c69503ab48125815993c07525 6b0/ (accessed: 15.02.2024). (In Russ.)
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   named after A. I. Herzen]. St. Petersburg, 2007. No 17 (43). Part 2: Pedagogy and psychology, theory and teaching methods. Pp. 50–53. (In Russ.)
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   organization and implementation of educational activities in the network form of implementation of educational programs: Order of the Ministry of Science and Higher Education of the Russian
   Federation and the Ministry of Education of the Russian Federation of August 5, 2020 No 882/391] [Electronic resource]. Available at: https://base.garant.ru/74626602/ (accessed: 15.02.2024). (In Russ.)
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    3156 (accessed: 14.03.2024). (In Russ.)
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    (accessed: 14.03.2024). (In Russ.)

For citation: Kleshcheva I. V. Educational and innovative potential of network interaction between organizations using the example of the development of research and project activities of
students. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2024, no 1 (50), pp. 73−93. (In Russ.) https://doi.org/10.34130/1992-2752_2024_1_73

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I. Some features of production angles of particles born in decay reactions in relativistic and nonrelativistic cases

https://doi.org/10.34130/1992-2752_2023_4_4

Pavel A. Makarov – Institute of Physics and Mathematics, Federal Research Centre Komi Science Centre, Ural Branch, RAS, makarovpa@ipm.komisc.ru

Text

Abstract. On the basis of kinematic approach some features of production angles of particles born in decay processes are studied. Statement and theorems describing the kinematics of decay reactions in the nonrelativistic and relativistic cases are formulated and proved. Corollaries allowing to determine the maximum of production angles of born particles are obtained and analyzed.

Keywords: decay, kinematics, conservation laws, production angles, Lorentz transformations

References

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II. Analysis of data on forest fires in the Komi Republic using Excel and Python

https://doi.org/10.34130/1992-2752_2023_4_29

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University

Nadezhda O. Kotelina – Pitirim Sorokin Syktyvkar State University

Fyodor N. Tentyukov – Pitirim Sorokin Syktyvkar State University

Text

Abstract. The article presents the results of data analysis on forest fires in the Komi Republic for 2010–2023. The study was carried out using the Excel spreadsheet processor and Python libraries: Scikit-learn, Pandas, Numpy, Openpyxl, Folium.

Keywords: data analysis, Python, k-means clustering, DBSCAN clustering, forest fires

References

1. Kolerov D. A. Improving methods for monitoring and responding to forest fires in the Komi Republic (using the example of artificial intelligence). OBZH: Osnovy bezopasnosti zhizni [FLS. Fundamentals of Life Safety]. 2022. No 1. Pp. 56–59. (In Russ.)
2. Volokitina A. V., Sofronova T. M., Korec M. A. Regional Scales of Fire Danger Rating in the Forest: Improved Technique. Sibirskij lesnoj zhurnal [Siberian Journal of Forest Science]. 2017. No 2. Pp. 52–61. DOI: 10.15372/SJFS20170206. (In Russ.)
3. Geoinformatsionnyy portal Respubliki Komi [Geoinformation portal of the Komi Republic] [Electronic resource]. Available at: https://gis.rkomi.ru/ (accessed: 11.11.2023). (In Russ.)
4. Kotelina N. O., Matvijchuk B. R. Image clustering by the k-means method. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of the Syktyvkar University. Ser. 1: Math. Mechanics. Informatics]. 2019. No 3 (32). Pp. 101–112. (In Russ.)
5. Scikit-learn documentation [Electronic resource]. Available at: https://scikit-learn.org/stable/modules/clustering.html#hdbscan (accessed: 11.11.2023).
6. Anisimov O. A., Borsch S. V., Georgievsky V. Yu. et al. Metody ocenki posledstvij izmeneniya klimata dlya fizicheskih i biologicheskih sistem [Methods for assessing the effects of climate change on physical and biological systems]. Institute of Global Climate and Ecology of the
   Federal Service for Hydrometeorology and Environmental Monitoring and the Russian Academy of Sciences. Moscow: Scientific Research Center of Space Hydrometeorology «Planet», 2012. 512 p. (In Russ.)

For citation: Babikova N. N., Kotelina N. O., Tentyukov F. N. Analysis of data on forest fires in the Komi Republic using Excel and Python. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 4 (49), pp. 29−46. (In Russ.) https://doi.org/10.34130/1992-2752_2023_4_29

III. Introduction to the theory of mathematical modeling when teaching students

https://doi.org/10.34130/1992-2752_2023_4_47

Andrey V. Yermolenko – Pitirim Sorokin Syktyvkar State University, ea74@list.ru

Text

Abstract. The article discusses the issues of introducing students to mathematical modeling in junior years. Ways of getting to know each other through individual training, instilling interest through historical and philosophical excursions, and familiarization with mathematical modeling in fundamental disciplines are proposed.

Keywords: numerical methods, training of scientific personnel, Lotka-Voltaire model, mathematical modeling

References

1. Mikhailovskii E. I. Shkola mekhaniki obolochek akademika Novozhilova [Academic Novozhilov’s school of mechanics of shells]. Syktyvkar: Publishing House of Syktyvkar University, 2005. 172 p. (In Russ.)
2. Mikhailovskii E.I., Yermolenko A.V., Mironov V.V., Tulubenskaya E.V. Utochnennye nelinejnye uravneniya v neklassicheskih zadachah mekhaniki obolochek : uchebnoe posobie
   [Refined nonlinear equations in non-classical tasks of mechanics of shells]. Syktyvkar: Publishing House of Syktyvkar University, 2009. 141 p. (In Russ.)
3. Yermolenko A. V. Classical contact problems with free boundary. Problemy matematicheskogo obrazovaniya v vuzah i shkolah Rossii v usloviyah ego modernizacii: IV Vserossijskaya nauchno–metodicheskaya konferenciya : sbornik materialov [Problems of mathematical education in universities and schools of Russia in the context of its modernization:
   IV All-Russian Scientific and Methodological Conference: collection of materials]. Syktyvkar: Publishing house of Syktyvkar University, 2014. Pp. 160–167. (In Russ.)
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6. Aslanov R. M., Sushkov V. V. Historical ways of emergence and development of complex analysis. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics]. 2022.
   No 3 (44). Pp. 47–63. (In Russ.)
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   (accessed: 21.11.2023). (In Russ.)
8. Yermolenko A. V., Osipov K. S. On using Python libraries to calculate plates. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics]. 2019. 4 (33). Pp. 86–95.
   (In Russ.)
9. Yermolenko A. V., Lotockaya S. R. Numerical solution of the problem “Predator – prey”. Aktual’nye voprosy sovremennoj nauki : Sbornik nauchnyh statej po materialam III Mezhdunarodnoj nauchnoprakticheskoj konferencii (21 noyabrya 2023 g., g. Ufa) : v 3 ch. [Current issues of modern science: Collection of scientific articles based on the materials of the III International Scientific and Practical Conference (November 21, 2023, Ufa) : in 3 parts]. Ufa: Publishing house. Scientific Research Center Bulletin of Science, 2023. Part 1. Pp. 11–16. (In Russ.)
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11. Popov N. I., Adiganova N. A. About one mathematical model of the biological problem “predator – prey”. Vestnik MGPU “Estestvennye nauki” [Bulletin of MSPU “Natural Sciences”]. 2017. No 4 (28). Pp. 119–(In Russ.)

For citation: Yermolenko A. V. Introduction to the theory of mathematical modeling when teaching students. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics],
2023, no 4 (49), pp. 47−58. (In Russ.) https://doi.org/10.34130/1992- 2752_2023_4_47

IV. Semantic aspects in the methods of math teaching

https://doi.org/10.34130/1992-2752_2023_4_59

Olga A. Sotnikova – Pitirim Sorokin Syktyvkar State University, sotnikovaoa@syktsu.ru

Text

Abstract. The article features the analysis of methodology of mathematics in relation to the semantics of mathematical matter. The author’s assumptions are based on the need to gain
understanding in learning mathematics. It is justified that semantic aspects of teaching math involve establishing meaningful connections within mathematical matter.

Keywords: understanding mathematics in teaching, meaningful connections, comprehension of mathematical concepts

References

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For citation: Sotnikova O. A. Semantic aspects in the methods of math teaching. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 4 (49), pp. 59−69. (In Russ.) https://doi.org/10.34130/1992-2752_2023_4_59

V. On the works of the mathematician, defender of Moscow, Korean Shin Deng Yun (1912–1942)

https://doi.org/10.34130/1992-2752_2023_4_70

Vladimir P. Odinets – W.P.Odyniec@mail.ru

Abstract. The article discusses the works on quasi-differential equations and quasi-differential operators in the Hilbert space by Korean Shin Deng Yun (1912–1942), post-graduate student at the Faculty of Mechanics and Mathematics of Moscow State University.

Keywords: quasi-differential equations, quasi-differential operators, Hilbert space, linearly independent Solutions, defense of Moscow

References

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I. On the structure of the ideals of the semiring of natural numbers

https://doi.org/10.34130/1992-2752_2023_3_4

Daniil E. Menyaev – Pitirim Sorokin Syktyvkar State University, dahnny@yandex.ru

Vasily V. Chermnykh – Pitirim Sorokin Syktyvkar State University, vv146@mail.ru

Text

Abstract. The article investigates the ideals of the semiring of natural numbers. A criterion is obtained for a natural number to belong to an ideal in terms of integer solutions of a certain system of linear inequalities. Applications of this criterion are demonstrated.

Keywords: semiring, ideal, Frobenius constant, Sylvester’s theorem.

References

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   Universities and Universities of the Volga-Vyatka Region]. 2009. Vol. 11. Pp. 118–121. (In Russ.)

For citation: Menyaev D. E., Chermnykh V. V. On the structure of the ideals of the semiring of natural numbers. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics],
2023, no 3 (48), pp. 4−17. (In Russ.) https://doi.org/10.34130/1992-2752_2023_3_4

II.Balance Sheet Channel of Monetary Policy: Review of Empirical Methods\

https://doi.org/10.34130/1992-2752_2023_3_18

Olga A. Maltseva – Bank of Russia, maltseva.rs@yandex.ru

Irina V. Polyakova – 1Bank of Russia

Evgenija N. Startseva – Pitirim Sorokin Syktyvkar State University

Text

Abstract. Research on the balance sheet channel of monetary policy is extensive, especially for developed country economies. The question of the specifics of the operation of the balance sheet (broad credit) channel in Russia remains open.

Keywords: monetary policy, balance sheet channel, vector autoregression, panel data, generalized method of moments, local projections approach.

References

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5. Holtem¨oller O. Further VAR evidence for the effectiveness of a credit channel in Germany. SFB 373 Discussion Paper (Humboldt Univer-sity of Berlin, Interdisciplinary Research Project 373: Quantification and Simu-lation of Economic Processes). Berlin, 2002. No 2002,66. 21 p.
   Available at: https://www.econstor.eu/handle/10419/65303 (accessed: 01.09.2023).
6. Shchepeleva M. A. Modeling the Balance Sheet Channel of Monetary Transmission in Russia. Finansovyy zhurnal [Financial Journal]. 2020. Vol. 12. No 2. Pp. 39–56. (In Russ.) DOI: 10.31107/2075-1990-2020-2- 39-56
7. Pestova A. A. “Credit view” on monetary policy in Russia. Prikladnaya ekonometrika [Applied Econometrics]. 2020. Vol. 57. Pp. 72–88. (In Russ.)
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12. Cloyne J., Ferreira C., Froemmel M., Surico P. Monetary policy, investment and firm heterogeneity. ECB Working Paper. 2018. No 2390 (25366). 48 p. Available at:
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    fluctuations]. Moscow: Publishing house “Delo” RANEPA, 2019. 528 p. (Academic textbook). (In Russ.)
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For citation: Maltseva O. A., Polyakova I. V., Startseva E. N. Balance Sheet Channel of Monetary Policy: Review of Empirical Methods. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 3 (48), pp. 18−48. (In Russ.) https://doi.org/10.34130/1992-2752_2023_3_18

III.Table generating language enhancement

https://doi.org/10.34130/1992-2752_2023_3_49

Evgeniy A. Belykh – Pitirim Sorokin Syktyvkar State University, hunter_x5_95@mail.ru

Yuriy V. Golchevskiy – Pitirim Sorokin Syktyvkar State University, yurygol@mail.ru

Text

Abstract. This paper is about designing a specialized C-like language, made to generate complex tables based on large number of various data sources.

Keywords: electronic documents, document generating, programming languages, electronic tables.

References

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2. Badam S. K., Liu Z. and Elmqvist N. Elastic Documents: Coupling Text and Tables through Contextual Visualizations for Enhanced Document Reading. IEEE Transactions on Visualization and Computer Graphics. 2019. Vol. 25. No 1. Pp. 661–671, Jan. 2019, DOI: 10.1109/TVCG.2018.2865119.
3. Okada M., Takaba M., Kaihara S., Okada M. Formal Representation of Summary Tables for Health Care Statistical Database Management. Computers and Biomedical Research. 1998. Vol. 31. No 6. Pp. 426–450. DOI: 10.1006/cbmr.1998.1491.
4. Amano A., Asada N. Graph grammar based analysis system of complex table form document. Proceedings of the 7th International Conference on Document Analysis and Recognition (ICDAR 2003). Edinburgh, Scotland, 2003. Pp. 916–920.
5. Belykh E. A., Golchevskiy Yu. V. An approach to designing a substitution language for generating electronic documents containing complex tables. Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp’yuternye Nauki [Bulletin of Udmurt University. Mathematics. Mechanics. Computer science]. 2019. Vol. 29. Issue 3. Pp. 422–437. (In Russ.)
6. Brian W. Kernighan, Dennis M. Ritchie. The C Programming Language. 2nd edition. Englewood Cliffs, New Jersey: Prentice Hall,272 p.
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11. The Open Group Base Specifications Issue 6, scanf. Available at: https://pubs.opengroup.org/onlinepubs/009695399/functions/ fscanf.html (accessed: 01.06.2023).

For citation: Belykh E. A., Golchevskiy Yu. V. Table generating language enhancement. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 3 (48), pp. 49−71. (In Russ.) https://doi.org/10.34130/1992-2752_2023_3_49

IV. Development and organization of business processes for preparing frequency dictionaries in order to automate natural language processing when performing tasks of linguistic text analysis

https://doi.org/10.34130/1992-2752_2023_3_72

Mikhail S. Krasheninnikov – SAI of the Komi Republic «Information Technology Center», Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Ivan I. Lavresh – Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Vladimir A. Ustyugov – Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Text

Abstract. This article discusses the processes of processing text data within the framework of information and analytical support for the activities of authorities of the Komi Republic. The interaction of state information systems and authorities of the Komi Republic and their various divisions is shown.

Keywords: natural language processing, frequency analysis of text, linguistic analysis of text, frequency dictionaries, information and analytical support.

References

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2. Gaverdovsky V. S. Practical evolution of information and analytical systems for regional management created at the State Autonomous Institution of the Republic of Kazakhstan “Information Technology Center”in 2009–2016. IT Arktika [IT Arctic]. 2017. No 1. Pp. 12–27. (In Russ.)
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4. Epifantsev B. N. Information and analytical security systems: possibilities of using resources of other specialties to form a laboratory base. Informatsionnoye protivodeystviye ugrozam
   terrorizma [Information counteraction to the threats of terrorism].Vol. 1. No 25. Pp. 159–166. (In Russ.)
5. Mukhametov M. R. Frequency analysis of text in Python. Mavlyutovskiye chteniya: Materialy XVI Vserossiyskoy molodezhnoy nauchnoy konferentsii : v 6 t. Ufa, 25–27 oktyabrya 2022 goda
   [Mavlyutov readings: Materials of the XVI All-Russian Youth Scientific Conference. In 6 volumes, Ufa, October 25–27]. Ufa: Ufa State Aviation Technical University, 2022. Vol. 5. Pp. 1054–1056. (In Russ.)
6. Preobrazhensky A. P., Choporova E. I., Menyailov D. V. Thematic analysis of text information based on frequency characteristics. Tsifrovaya obrabotka signalov i yeyo primeneniye
   (DSPA-2022): 24-ya Mezhdunarodnaya konferentsiya, Moskva, 30 marta – 01 aprelya 2022 goda [Digital signal processing and its application (DSPA-2022): 24th International conference, Moscow, March 30 – April 1, 2022]. Moscow: Russian Scientific and Technical Society of Radio Engineering, Electronics and Communications named after A. S. Popova, 2022. Issue XXIV. Pp. 136–140. (In Russ.)

V. Instructional features of the elementary algebra and pre-calculus: practical course teaching guide

https://doi.org/10.34130/1992-2752_2023_3_90

Olga A. Sotnikova – Pitirim Sorokin Syktyvkar State University, sotnikovaoa@syktsu.ru

Vyacheslav A. Popov

Text

Abstract. The article explores instructional aspects of the contents of the teaching guide prepared for publication. The teaching methods applied are based on the focus on obtaining math learning experience.

Keywords: math learning activity, studying the elementary algebra and pre-calculus.

For citation: Sotnikova O. A., Popov V. A. Instructional features of the elementary algebra and pre-calculus: practical course teaching guide. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 3 (48), pp. 90−95. (In Russ.) https://doi.org/10.34130/1992-2752_2023_3_90

Full text

I. Andrey V. Yermolenko, Oksana I. Turkova Determination of stresses on the front surfaces of the plate

https://doi.org/10.34130/1992-2752_2023_2_4

Andrey V. Yermolenko – Pitirim Sorokin Syktyvkar State University, ea74@list.ru

Oksana I. Turkova – Pitirim Sorokin Syktyvkar State University

Text

Abstract. When solving contact problems, it is necessary to set the interaction conditions using the displacements of the front surfaces of the plate.

Keywords: plate theory, reference surface, stresses.

References

1. Mikhailovskii E. I., Toropov A. V. Matematicheskiye modeli teorii uprugosti [Mathematical models of theory of elasticity]. Syktyvkar: Syktyvkarskij un-t [Syktyvkar: Syktyvkar State University], 1995. 251 p. (In Russ.)
2. Mikhailovskii E. I. Shkola mekhaniki obolochek akademika Novozhilova [Academic Novozhilov’s school of mechanics of shells]. Syktyvkar: Izd-vo Syktyvkarskogo un-ta [Syktyvkar: Publishing House of Syktyvkar University], 2005. 172 p. (In Russ.)
3. Mikhailovskii E. I.,Badokin K. V., Ermolenko A. V. Karman type theory of flexure of plates without Kirhgof’s hypotheses. Vestnik Syktyvkarskogo universiteta. Seriya 1 [Bulletin of Syktyvkar University. Series 1], 1999, issue 3, pp. 181–202. (In Russ.)
4. Timoshenko S. P. Kurs teorii uprugosti, ch. II. Sterzhni I plastinki [Course of theory of elasticity, part II. Shafts and plates]. Petrograd: Izd-vo in-ta inzh. putej soobscheniya, 1916. Izd. 2-e. Kiev: Naukova dumka [Petrograd: Publishing House of institute of Railway Engineers,
5. Vol. 2. Kiev: Publishing House of Naukova Dumka], 1972. 507 p. (In Russ.)
6. Naghdi P. M. On the theory of thin elastic shells. Quarterly of Applied Mathematics. 1957, 14, no 4, pp. 369–380.
7. Chernyh K. F. Nelinejnaya teoriya uprugosti v mashinostroitel’nyh raschetah. [Nonlinear theory of elasticity in mechanical engineering calculations] L.: Mashinostroenie [Leningrad: Mechanical engineering], 336 p. (In Russ.)
8. Yermolenko A. V., Mironov V. V. Mechanism of the effect of transverse shifts on the stress state in the problems of plate and shell mechanics. International Journal of Recent Technology and Engineering (IJRTE). 2019, vol. 7, issue 5, January, pp. 318–321.
9. Mikhailovskii E. I., Ermolenko A. V., Mironov V. V., Tulubenskaya E. V. Utochnennye nelinejnye uravneniya v neklassicheskih zadachah mekhaniki obolochek : uchebnoe posobie [Refined nonlinear equations in non classical tasks of mechanics of shells]. Syktyvkar: Izd-vo Syktyvkarskogo un-ta [Syktyvkar: Publishing House of Syktyvkar University], 2009. 141 p. (In Russ.)
10. Kulikov G. M., Plotnikova S. V. Solvation of three dimensional tasks for thick elastic shells based on method of base surfaces. Mekhanika tverdogo tela [Mechanics of solid body], 2014, no 4,
    pp. 54–64. (In Russ.)
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12. Korobejnikov S. N., Shutov A. V. The choice of basic surface in equations of plates and shells. Vychislitel’nye tekhnologii [Computing technologies], 2003, vol. 8, pp. 38–59. (In Russ.)
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14. Nikabadze M. U. Parameterization of shells based on two basic surfaces. Dep. V VINITI AN SSSR [Department of All-Union Institute for Scientific and Technical Information of USSR Academy of Sciences], 12.07.1988. № 5588–V88. 29 p. (In Russ.)
15. Kim Y. H., Lee S.W. A solid element formulation for large deflection analysis of composite shell structures. Comp. Struct, 1988, vol. 30. no 1–2, pp. 269–274.
16. Kulikov G. M., Plotnikova S. V. Comparative analysis of two algorithms of numerical solution of nonlinear tasks of static of multilayer anisotropic shells of rotation. 2. Accounting of transverse compression. Mekh. kompozit. materialov [Mechanics of composite materials], 1999,
    vol. 35, no 4, pp. 435–446. (In Russ.)
17. Nikabadze M. U. Some geometry ratios of theory of shells with two basic surfaces. Izv. RAN. MTT [Mechanics of Solids. A Journal of Russian Academy of Sciences], 2000, no 4., pp. 129–139. (In Russ.)
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19. Ermolenko A. V. Theory of Karman-Timoshenko-Nagdi type plane plates regarding of arbitrary basic plane. V mire nauchnyh otkrytij [In the World of Scientific Discoveries]. Krasnoyarsk: Science and Innovation Center Publishing House, 2011. No 8.1 (20), pp. 336–347. (In Russ.)
20. Yermolenko A. V. The choice of basic surface in contact tasks with free boundary. Vestnik Syktyvkarskogo universiteta. Seriya 1 [Bulletin of Syktyvkar University. Series 1]. 2013, issue 18, pp. 42–47. (In Russ.)

For citation: Yermolenko A. V., Turkova O. I. Determination of stresses on the front surfaces of the plate. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 2 (47), pp. 4−16. https://doi.org/10.34130/1992-2752_2023_2_4

II. Vadim A. Melnikov About architectural features of collisions filtering in the physics engine for 3D games

https://doi.org/10.34130/1992-2752_2023_2_17

Vadim A. Melnikov – Pitirim Sorokin Syktyvkar State University, muller95@yandex.ru

Text

Abstract. The article discusses parallel and sequential approaches to the implementation of collision filtering based on array sorting and measures the performance of various sorts with different numbers of threads.

Keywords: physics, collisions, filtering, AABB, sorting.

References

1. Melnikov V. A. Development Process of game engine core for 2Dgames and interfaces Sad Lion Engine. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics], 2019, 4 (33), pp. 21–37. (In Russ.)
2. Melnikov V. A., Yermolenko A. V. Development of XMLbased Markup Language. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Informatics], 2022, 1 (42), pp. 61–73.
3. Gregory J. Game engine architecture, 3rd edition. Boca Raton: CRC Press. 2019, 1200 p.
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III. Vladimir P. Odinets On the works of five Moscow mathematicians who died during
the Great Patriotic War

https://doi.org/10.34130/1992-2752_2023_2_29

Vladimir P. Odinets – W.P.Odyniec@mail.ru

Text

Abstract. The article describes the works of five Moscow mathematicians: M. Bebutov, N. Vedenisov, M. Gleserman, D. Shklyarsky, D. Junovic’, who died in 1941–1942. In the description of the works the biographies of these mathematicians are also given.

Keywords: dynamical system, stability in sense of Lyapunov, Hausdorff space, first axiom of countability, second axiom of countability.

References

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2. Bebutov M. V. One theorem on simplicial complexes. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1939. 19, no 5, pp. 347–348. (In Russ.)
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4. Bebutov M. V. Mapping the trajectories of a dynamical system to a family of parallel lines. Moscow: Byull.uni-ta (A) [University Bulletin]. 2, no 3, pp. 3–23. (In Russ.)
5. Bebutov M. V., Stepanov V. V. On the change of time in dynamical systems with an invariant measure. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1939. 24, no 3, pp. 217–219. (In Russ.)
6. Bebutov M. V. On invariant measurement in dynamical systems that differ only by times. Matem. sb. [Mathematical collection]. 1940. 7 (49), no 1, pp. 143–166.
7. Bebutov M.V. On dynamical systems in the space of continuous functions. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1940. 29, no 9, pp. 904–906. (In Russ.)
8. Bebutov M. V. O dinamicheskikh sistemakh v prostranstve nepreryvnykh funktsiy [On dynamical systems in the space of continuous functions]. Moscow: Izd-vo MGU, 1940. 52 p. (Byulleten’ Moskovskogo gosudarstvennogo universiteta. Matematika [Bulletin of Moscow State University. Mathematics] / eds B. V. Gnedenko, A. N. Kolmogorov, V. V. Stepanov. Vol. 2, no 5). (In Russ.)
9. Bebutov M. V. Markov chains with compact state space. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1941. 30, no 6, pp. 180–181. (In Russ.)
10. Bebutov M. V. Markov chains with compact state space. Matem. sb. [Mathematical collection]. 1942. 52, no 3, pp. 213–238. (In Russ.)
11. Alekseev V. M., Fomin S. V. Mikhail Valeryevich Bebutov. UMN [Russian Mathematical Surveys]. 1970. 25, no 3, pp. 237–239. (In Russ.)
12. Tychonoff A. N., Vedenissoff N. B. Sur le d´evelopment modern de la th´eorie des espaces abstraits. Вull. sci. math. 1926. 50. Pp. 15–27.
13. Vedenisov N. B. About full metric spaces. J. math. pur. et appl. 9, pp. 377–392.
14. Vedenisov N. B. On continuous functions in topological spaces. Fund. Math., 1936. 27, pp. 234–238.
15. Vedenisov N. B. About one problem of Pavel Alexandrov. Ann. of Math. 1936. 37, pp. 427–428.
16. Vedenisov N. B. On manifolds in the sense of E.Cech. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1937. 16, no 9, pp. 443–445. (In Russ.)
17. Vedenisov N. B. On some topological properties of ordered sets. Uchenye zapiski gos. ped. inst-ta. Ser. fiz.-mat. [Uchen. notes of the State ped. in-ta. Ser. of phys.-math.]. 1938, 2, pp. 15–26. (In Russ.)
18. Vedenisov N. B. Remarks on continuous functions in topological spaces. Uchenye zapiski gos. ped. inst-ta. Ser. fiz.-mat. [Uchen. notes of the State ped. in-ta. Ser. of phys.-math.]. 1938, 2, pp. 47–52. (In Russ.)
19. Vedenisov N. B. Remarks on the dimensionality in topologicalspaces. Uchenye zapiski uni-ta [Academic Notes of the University].1939, 30, pp. 131–140. (In Russ.)
20. Vedenisov N. B. Generalization of one theorem of dimensionality theory. Uchenye zapiski gos. ped. inst-ta. Ser. fiz.-mat. [Uchen. notes of the State ped. in-ta. Ser. of phys.-math.]. 1940, 7, pp. 35–40. (In Russ.)
21. Vedenisov N. B. Generalization of several theorems of dimensionality. Comp. Mathem., 1940, 7, pp. 194–200.
22. Vedenisov N. B. On the dimensionality in the sense of E. Cech. Izv. AN USSR. Ser. matem. [Proceedings of the Academy of Sciences of the USSR. Ser. mathem.]. 1941, 5, pp. 211–216. (In Russ.)
23. Vedenisov N. B. Bicompact spaces. UMN [Russian Mathematical Surveys]. 1943, 3, no 4, pp. 67–79. (In Russ.)
24. Alexandrov P. S. Nicolay Borisovich Vedenisov. UMN [Russian Mathematical Surveys]. 1970. 25, no 3, pp. 239–241. (In Russ.)
25. Kazhdan Ya. M. Mark Efimovich Glezerman. UMN [Russian Mathematical Surveys]. 1970, 25, issue 3, pp. 241–243. (In Russ.)
26. Pontryagin L. S., Glezerman M. E. Intersections of manifolds. UMN [Russian Mathematical Surveys]. 1947, 2, issue 1, pp. 58–155. (In Russ.)
27. Golovina L. I. David Oskarovich Shklyarsky. UMN [Russian Mathematical Surveys], 1970, 25, issue 3, pp. 248–252. (In Russ.)
28. Shklyarsky D. O. Moscow Mathematical Circle. UMN [Russian Mathematical Surveys]. 1945, 1, issue 3, pp. 212–217. (In Russ.)
29. Cherneev S. V., Romanyuk V. Ya., Vdovin A. I. and others. Moskovskiy universitet v Velikoy Otechestvennoy voyne [Moscow University in the Great Patriotic War]. 4-e izd. Moscow: Izd-vo MGU, 632 c. (In Russ.)
30. Shklyarsky D. O. On the partitioning of two-dimensional sphere. Matem. sb. [Mathematical collection]. 1945, 58, no 2, pp. 126–128. (In Russ.)
31. Junovic’ B. M. On the differentiation of absolutely additive functions of sets. Doklady AN USSR [Reports of the Academy of Sciences of the USSR]. 1941, 30, no 1, pp. 112–114. (In Russ.)

For citation: Odinets V. P. On the works of five Moscow mathematicians who died during the Great Patriotic War. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 2 (47), pp. 29−55. https://doi.org/10.34130/1992-2752_2023_2_29

IV. Vladimir A. Ustyugov, Ivan I. Lavresh, Yuriy N. Istomin ,Pavel A. Makarov The use of SDR devices in the educational process for technical specialties of universities

https://doi.org/10.34130/1992-2752_2023_2_56

Vladimir A. Ustyugov – Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Ivan I. Lavresh – Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Yuriy N. Istomin – Pitirim Sorokin Syktyvkar State University, kib@syktsu.ru

Pavel A. Makarov – Federal Research Centre Komi Science Centre, Ural Branch, RAS, makarovpa@ipm.komisc.ru

Text

Abstract. The article deals with the principles of modern software defined radio (SDR). Interest in such devices is due to the low cost of certain models, as well as a wide range of tasks in the
search and digital processing of electromagnetic signals in the context of technical protection of information, the study of the spread of digital and analog signals in urban environments, construction of new digital communication systems. Specific examples of defined signals and software tools for developing radio receiver configurations are considered.

Keywords: digital signal processing, software-defined radio.

References

1. Bikkenin R. R., Chesnokov M. N. Teoriya elektricheskoj svyazi [The theory of electrical communication]. Мoscow: Akademia, 2010. 336 p. (In Russ.)
2. Gepko I. A. Sovremennye besprovodnye seti: sostoyanie i perspektivy razvitiya [Modern Wireless Networks: Status and Prospects of Development]. Кiev: «EKMO», 2009. 672 p. (In Russ.)
3. Sklyar B. Cifrovaya svyaz. Teoreticheskie osnovy i prakticheskoe primenenie [Digital communication. Theoretical foundations and practical applications]. Мoscow: Wiljams, 2007. 1104 p. (In Russ.)
4. Galkin V. A. Osnovy programmno-konfiguriruemogo radio [Fundamentals of reconfigurable radio]. Мoscow: Goryachaya liniya – Telekom, 2020. 372 p. (In Russ.)
5. Fokin G. A. Texnologii programmno-konfiguriruemogo radio [Software-configurable radio technologies]. Мoscow: Goryachaya liniya – Telekom, 2023. 316 p.(In Russ.)
6. Kheld G. Texnologii peredachi dannyx [Data transmission technologies]. SPb.: BHV, 2003. 720p. (In Russ.)
7. Ratynskij M. V. Osnovy sotovoj svyazi [Cellular basics]. Мoscow: Radio i svyaz, 2000. 248p. (In Russ.)

V. Elena Yu. Yashina Proof of Frobenius’ Theorem as Completion of Algebra and Numerical Systems Course at Pedagogical University

https://doi.org/10.34130/1992-2752_2023_2_69

Elena Yu. Yashina – The Herzen State Pedagogical University of Russia, elyashina@mail.ru

Text

Abstract. The article presents an original proof of Frobenius’ theorem on finite-dimensional division algebras over a field of real numbers. The theorem shows the impossibility of extension of the concept of number, so its proof is useful for the formation of professional competencies of future mathematics teachers.

Keywords: number line, real numbers, finite-dimensional division algebra, Frobenius’ theorem.

References

1. Zhmurova I. Yu. The study of Numerical Systems in a Pedagogical University in the context implementing links. Mezhdunarodnyy nauchno-issledovatel’skiy zhurnal [International Research Journal]. 2020, no 8-3 (98), pp. 28–31. (In Russ.) https://doi.org/10.23670/IRJ.2020.98.8.073
2. Panteleymonova A. V., Belova M. A. Development of the concept of number in the school mathematics course. Continuum. Matematika. Informatika. Obrazovaniye [Continuum. Mathematics. Computer science. Education]. 2019, no 4 (16), pp. 31–37. (In Russ.)
3. Drozd Yu. A., Kirichenko V. V. Konechnomernye algebry [Finitedimensional algebras]. Kiev: Visha shkola, 1980. 192 p. (In Russ.)

For citation: Yashina E. Yu. Proof of Frobenius’ Theorem as Completion of Algebra and Numerical Systems Course at Pedagogical University. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 2 (47), pp. 69−82. https://doi.org/10.34130/1992-2752_2023_2_69

VI. Evgenija A. Kaneva About the work of the scientific and methodological seminar on the problems of education and the methodology of teaching mathematics

https://doi.org/10.34130/1992-2752_2023_2_83

Evgenija A. Kaneva – Pitirim Sorokin Syktyvkar State University, kaneva.zhenya@mail.ru

Text

Abstract. In modern society, specialists of various profiles are required, in particular, to have developed logical thinking, the ability to quickly adapt to changing socio-economic conditions and
search for non-trivial solutions in problem situations, and the ability to work in a team.

Keywords: scientific and methodological seminar, research activity, pedagogical mentoring, student science.

References

1. Popov N. I., Kaneva E. A. The use of correlation analysis in the study of the quality of education of future teachers of mathematics and computer science. Gumanitarnye nauki i obrazovanie [Humanities and Education]. 2022, vol. 13, no 4 (52), pp. 95–99. (In Russ.)
2. Popov N. I., Yakovleva E. V. Methodological aspects of blended teaching of mathematics to students of medical specialties at the university. Perspektivy nauki i obrazovaniya [Prospects for science and education]. 2022, no 3 (57), pp. 232–252. (In Russ.)
3. Yakovleva E. V. Innovative Approaches in Teaching Mathematics to Future Doctors at a Regional University. Mir nauki, kul’tury, obrazovaniya [The world of science, culture, education]. 2022, no 5 (96), pp. 176–181. (In Russ.)
4. Popov N. I., Bolotin E. S. Using the Python IDLE Development and Training Environment for Students to Learn Probability. Vestnik MGPU. Seriya: Informatika i informatizaciya obrazovaniya [Bulletin MGPU. Series: Informatics and informatization of education]. 2023, no 1 (63), pp. 79–85. (In Russ.)
5. Shustova E. N. Obuchenie aksiomaticheskomu metodu vvedeniya elementarnyh funkcij v vuze kak komponent sistemy formirovaniya metodicheskoj kompetentnosti budushchih uchitelej matematiki: dissertaciya . . . kandidata pedagogicheskih nauk: 13.00.02 [Teaching
   the axiomatic method of introducing elementary functions at the university as a component of the system for the formation of methodological competence of future teachers of mathematics:
   dissertation . . . candidate of pedagogical sciences: 13.00.02]. E. N. Shustova; [Mesto zashchity: RGPU im. A. I. Gercena]. SPb, 275 p. (In Russ.)
6. Popov N. I. Fundamentalizaciya universitetskogo matematicheskogo obrazovaniya : monografiya [Fundamentalization of University Mathematical Education : Monograph]. Yelets: EGU im. I. A. Bunina, 174 p. (In Russ.)
7. Popov N. I., Kaneva E. A. Using the electronic course “School Mathematical Practicum”in the preparation of future teachers. Vestnik MGPU. Seriya: Informatika i informatizaciya obrazovaniya [Bulletin MGPU. Series: Informatics and informatization of education]. 2022, no 4 (62), pp. 109–118. (In Russ.)
8. Popov N. I., Kaneva E. A. Formation of cognitive interest of schoolchildren in mathematics using computer learning games. Vestnik Syktyvkarskogo universiteta. Ser. 1: Matematika. Mehanika.
   Informatika [Bulletin of the Syktyvkar University. Ser. 1: Math. Mechanics. Informatics]. 2022, no 2 (43), pp. 55–66. (In Russ.)
9. Popov N. I., Kaneva E. A., Bolotin E. S. Study of the special abilities of university students in teaching mathematics. Mir nauki, kul’tury, obrazovaniya [The world of science, culture, education]. 2022, no 1 (92), pp. 110–113. (In Russ.)
10. Shustova E. N. Features of using the axiomatic method of introducing elementary functions in teaching future teachers of mathematics at the university. Obrazovatel’nyj vestnik «Soznanie»
    [Educational bulletin “Consciousness”]. 2022, vol. 24, no 4, pp. 23– (In Russ.)
11. Popov N. I., Bobrova G. Yu. Methodological features of teaching the basics of probability theory in high school. Dvadtsat’ devyataya godichnaya sessiya Uchenogo soveta Syktyvkarskogo
    gosudarstvennogo universiteta imeni Pitirima Sorokina [Elektronnyy resurs] : Fevral’skiye chteniya : Natsional’naya konferentsiya : sbornik statey / otv. red.: O. A. Sotnikova, N. N. Novikova [Twenty-ninth annual session of the Academic Council of Syktyvkar State University named Pitirim Sorokin [Electronic resource] : February readings : National conference : collection of articles / ed.: O. A. Sotnikova, N. N. Novikova]. Syktyvkar: Publishing House of the SSU Pitirim Sorokin, 2022, pp. 473–476. (In Russ.)

For citation: Kaneva E. A. About the work of the scientific and methodological seminar on the problems of education and the methodology of teaching mathematics. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 2 (47), pp. 83−92. https://doi.org/10.34130/1992-2752_2023_2_83

Full text

Elena A. Sozontova On new cases of solvability of the Goursat problem in quadratures for one hyperbolic type system

https://doi.org/10.34130/1992-2752_2023_1_4

Elena A. Sozontova – Elabuga Institute KFU, sozontova-elena@rambler.ru

Text

Abstract. The paper investigates the Goursat problem for a hyperbolic type system with two independent variables. With the help of factorization of the equations of the system under consideration, new cases of solvability in the quadratures of the problem are obtained.

Keywords: hyperbolic system, the Goursat problem, solvability in quadratures.

References

1. Bicadze A. V. Nekotorye klassy uravnenij v chastnyh proizvodnyh [Some classes of partial differential equations]. Moscow: Nauka, 1981, 448 p. (In Russ.)
2. Sozontova E. A. On solvability by quadratures conditions of boundary value problems for second order hyperbolic systems. Ufimskij matematicheskij zhurnal [Ufa mathematical journal], 2016, vol. 8, no 3, pp. 135–140. (In Russ.)
3. Sozontova E. A. On new cases of solvability of the Goursat problem in quadratures for a second-order system. Trudy Matematicheskogo centra imeni N. I. Lobachevskogo: materialy XVI molodezhnoj nauchnoj shkoly-konferencii “Lobachevskie chteniya – 2017” [Proceedings of the N. I. Lobachevsky: materials of the XVI Youth Scientific School-Conference “Lobachevsky Readings – 2017”], 2017, pp. 140–141. (In Russ.)
4. Bicadze A. V. Uravneniya matematicheskoj fiziki [Equations of mathematical physics]. Moscow: Nauka, 1982, 336 p. (In Russ.)
5. Zhegalov V. I., Mironov A. N. Differencial’nye uravneniya so starshimi chastnymi proizvodnymi [Differential equations with higher partial derivatives]. Kazan: Kazanskoe matematicheskoe obshchestvo, 2001, 226 p. (In Russ.)
6. Zhegalov V. I. On solvability cases for hyperbolic equations in terms of special functions. Neklassicheskie uravneniya matematicheskoi fiziki [Nonclassical Equations of Mathematical Physics]. Novosibirsk: Mathematical Institute, Russian Academy of Science, Siberian Branch,
   2002, pp. 73–79. (In Russ.)
7. Zhegalov V. I., Sarvarova I. M. Solvability of the Goursat problem in quadratures. Izvestiya vuzov. Matematika [Russian Mathematics], 2013, no 3, pp. 68–73. (In Russ.)
8. Zhegalov V. I., Sozontova E. A. An addition to the cases of solvability of the goursat problem in quadratures. Differencial’nye uravneniya [Differential equations], 2017, vol. 53, no 2, pp. 270–272. (In Russ.)
9. Chekmaryov T. V. Solution of a hyperbolic system of two partial differential equations with two unknown functions. Izvestiya vuzov. Matematika [Russian Mathematics], 1959, no 6, pp. 220–228. (In Russ.)

For citation: Sozontova E. A. On new cases of solvability of the Goursat problem in quadratures for one hyperbolic type system. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 4−13. https://doi.org/10.34130/1992- 2752_2023_1_4

II. Nadezhda N. Babikova Using NumPy to vectorization of Python code

https://doi.org/10.34130/1992-2752_2023_1_14

Nadezhda N. Babikova – Pitirim Sorokin Syktyvkar State University, valmasha@mail.ru\

Text

Abstrakt. Code vectorization is the process of moving from operations on individual elements of arrays to operations that occur on entire arrays or their parts. The NumPy library tools that allow to vectorize Python code are discussed in the article: vector functions, broadcasting, masking, fancy indexing. The effectiveness of these tools is demonstrated on the example of two machine learning problems.

Keywords: NumPy, Python, vectorization, multidimensional arrays, loops.

References

1. Harris C. R., Millman K. J., van der Walt S. J. et al. Array programming with NumPy. Nature, 2020, no. 585. pp. 357–362. https://doi.org/10.1038/s41586-020-2649-2.
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5. Nicolas P. Rougier. From-python-to-numpy. Available at: https://www.labri.fr/perso/nrougier/from-python-to-numpy/#codevectorization (accessed: 07.02.2023).
6. Shenoy A. How Are Convolutions Actually Performed Under the Hood. Available at: https://towardsdatascience.com/howare-convolutions-actually-performed-under-the-hood-226523ce7fbf (accessed: 07.02.2023).

For citation: Babikova N. N. Using NumPy to vectorization of Python code . Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 14−29. https://doi.org/10.34130/1992-2752_2023_1_14

III. Yuriy V. Golchevskiy, Dmitriy A. Ushakov Cryptographic Calculations Acceleration by Low-Level Optimization of Basic Blocks

https://doi.org/10.34130/1992-2752_2023_1_30

Yuriy V. Golchevskiy – Pitirim Sorokin Syktyvkar State University, yurygol@mail.ru

Dmitriy A. Ushakov – Pitirim Sorokin Syktyvkar State University

Text

Abstract. Thе paper presents a study of optimizing the program code problem when implementing encryption algorithms. The basic blocks of the cryptographic algorithm are highlighted on the example of the Kuznechik algorithm. Implemented variants of the algorithm using different versions of vector instructions and their combinations have been tested on processors of various microarchitectures. Some developed algorithm implementation variants show a higher encryption speed than existing software products.

Keywords: cryptographic computing, low-level optimization, basic blocks, algorithm Kuznechik.

References

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26. Severin P. A., Golchevskiy Yu. V. Low-Level Performance Optimization on the Example of the Hash Function GOST R 34.11- Sistemnyy administrator [System Administrator]. 2017, no 1–2, pp. 170–171. (In Russ.)
27. Ahmetzyanova L. R., Alekseev E. K., Oshkin I. B. et al. On the properties of the CTR encryption mode of the Magma and Kuznyechik block ciphers with re-keying method based on CryptoPro Key Meshing. IACR Cryptol. ePrint Arch., 2016, 628 p.
28. Gafurov I. R. High-speed software implementation of encryption algorithms from GOST R 34.12-2015. Uchenyye zapiski UlGU. Seriya: Matematika i informatsionnyye tekhnologii [Scientific notes of UlGU. Series: Mathematics and Information Technology], 2022, no 2, pp. 38–(In Russ.)

For citation: Golchevskiy Yu. V., Ushakov D. A. Cryptographic Calculations Acceleration by Low-Level Optimization of Basic Blocks. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 30−49. https://doi.org/10.34130/1992-2752_2023_1_30

IV. Svetlana A. Deynega Components of Geometric-graphic Competence, Formed in the Study of Descriptive Geometry at a Technical University

https://doi.org/10.34130/1992-2752_2023_1_50

Svetlana A. Deynega – Uсhta State Technical University, deynega07@mail.ru

Text

Abstract. The article considers the generalized components of the professional competencies of students of a technical university. The significance of the formation of a cognitive and creative component at the initial stage of professional training is revealed. The possibilities of forming a cognitive and creative component of geometry and graphic competence in the study of descriptive geometry are shown.

Keywords: studying projective geometry, mathematical and graphic competence, technical education.

References

1. Yakunin V. I., Guznenkov V. N. Geometric and graphic disciplines at the technical University. Teoriya i praktika obshchestvennogo razvitiya [Theory and practice of social development]. 2014, no 17, pp. 191–195. (In Russ.)
2. Guznenkov V. N., Zhurbenko P. A. Model as a key concept of geometric-graphic training. Alma mater (Vestnik vysshei shkoly) [Alma mater (Bulletin of the Higher School)]. 2013, no 4, pp. 82–87. (In Russ.)
3. Vyazankova V. V. Formation of graphic competence of bachelors of technical areas of training in the conditions of information and educational environment. Sovremennyye problemy nauki i obrazovaniya [Modern problems of science and education]. 2021, no 2. Available
   at: https://science-education.ru/ru/article/view?id=30663 (accessed: 03.03.2023). (In Russ.)
4. Guznenkov V. N., Yakunin V.I., Seregin V.I. et al. Computer graphics – the basis of geometric-graphic training. Mezhdunarodnyy nauchno-issledovatel’skiy zhurnal [International Research Journal]. 2016, no 4 (46). Available at: https://research-journal.org/archive/4-
   46-2016-april/kompyuternaya-grafika-osnova-geometro-graficheskojpodgotovki (accessed: 07.03.2023). doi: 10.18454/IRJ.2016.46.298 (In Russ.)
5. Savchenko E. V. Components of the information competence of the future engineer, formed in the study of fundamental disciplines. Sovremennoye obrazovaniye [Modern Education]. 2020, no 4, pp. 37–48. Available at: https://nbpublish.com/library_read_article.php?id=31606 (accessed: 07.03.2023). doi: 10.25136/2409-8736.2020.4.31606 (In Russ.)
6. Kovalenko A. V. Graphic competence as one of the components of the professional competence of a bachelor of vocational training in the direction “051000.62 Vocational training (by industry)”. Vestnik YuUrGGPU [Bulletin of the SUSUGPU]. 2011, no 10, pp. 83– Available at: https://cyberleninka.ru/article/n/graficheskayakompetentsiya-kak-odna-iz-sostavlyayuschih-professionalnoykompetentnosti-bakalavra-professionalnogo-obucheniya-po/viewer (accessed: 09.03.2023). (In Russ.)
7. Volkhin K. A., Leibov A. M. Problems of formation of graphic competence in the system of higher professional education. Filosofiya obrazovaniya [Philosophy of education]. 2012, no 4 (43), pp. 16–22.

For citation: Deynega S. A. Components of Geometric-graphic Competence, Formed in the Study of Descriptive Geometry at a Technical University. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 50−63. https://doi.org/10.34130/1992 2752_2023_1_50

V. Sergej N. Dorofeev, Natalija V. Nazemnova Numerical sequences as a fundamental factor in the formation of creative activity in future bachelors

https://doi.org/10.34130/1992-2752_2023_1_64

Sergej N. Dorofeev – Togliatti State University, komrad.dorofeev2010@yandex.ru

Natalija V. Nazemnova – Penza State University

Text

Abstract. This article examines the problems of training engineering personnel for creative activity in the process of studying the basics of higher mathematics.

Keywords: mathematical education, continuity, fundamentality, quality of mathematical training, numerical sequences, integrals.

References

1. Dorofeev S. N., Esetov E. N., Nazemnova N. V. Analogy as a basis for teaching schoolchildren the vector method of solving geometric problems. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University. Series 1: Mathematics. Mechanics. Computer science]. 2021, issue 4 (41), pp. 69–79. (In Russ.)
2. Menchinskaya N. A. Problemy obucheniya i psikhicheskogo razvitiya studentov [Problems of teaching and mental development of students]. M.: Pedagogy, 1989, 224 p. (In Russ.)
3. Slepkan Z. I. Psikhologo-pedagogicheskiye osnovy prepodavaniya matematiki : metod.posobiye [Psychological and pedagogical foundations of teaching mathematics: method.stipend]. Kiev, 1983, 192 p. (In Russ.)
4. Dorofeev S. N. Teoriya i praktika formirovaniya tvorcheskoy aktivnosti budushchikh uchiteley matematiki v pedagogicheskom vuze [Theory and practice of formation of creative activity of future teachers of mathematics at a pedagogical university, dissertation for the degree of Doctor of Pedagogical Sciences]. Penza, 2000. 410 p. (In Russ.)
5. Dorofeev S. N., Ivanova T. A., Uteeva R. A. et al. Continuity in the preparation of future bachelors of pedagogical education (profile “Mathematics”) for creative activity. Gumanitarnyye nauki i obrazovaniye [Humanities and Education]. 2018, vol. 9, no 4 (36), pp. 25–30. (In Russ.)
6. Dorofeev S. N. Competence-based approach to mathematical education of students of technical universities. Pedagogicheskoye obrazovaniye i nauka [Pedagogical education and science]. 2009, no 1, pp.88–91. (In Russ.)
7. Dorofeev S. N. UDE as a method of preparing future bachelors of pedagogical education for professional activity. Gumanitarnyye nauki i obrazovaniye [Humanities and Education]. 2013, no 1, pp. 14–17. (In Russ.)
8. Dorofeev S. N., Pavlov I. I., Shichiyakh R. F., Prikhodko A. N.Differentiated Training as a Form of Organization of Education fnd Cognitive Activity of Future Masters of Pedagogical Education. Applied Lingvistics Research Jounal, 2021, 5 (3), pp. 216–222.
9. Dorofeev S. N., Shichiyach R. A., Khasimova L. N. Devoloping creative activity abilities of students in higer educaitional esteblishments. Rеvista оn line de politica e gistao educational. 2021, vol. 25, no S2, pp. 883–900.
10. Friedman L. M. Psikhologo-pedagogicheskiye osnovy prepodavaniya matematiki v shkole: uchitel’ matematiki o pedagogicheskoy psikhologii [Psychological and pedagogical foundations of teaching mathematics at school: a teacher of mathematics about pedagogical psychology]. M.: Enlightenment, 1983, 160 p. (In Russ.)
11. Talyzina N. F. Formation of mathematical concepts. Formirovaniye metodov matematicheskogo myshleniya [Formation of methods of mathematical thinking] / edited by N. F. Talyzina. M.: Lomonosov Moscow State University; Ventana-Graf LLP, 1995, pp. 13–28. (In Russ.)
12. Ball G. A. Teoriya obrazovatel’nykh problem: psikhologopedagogicheskiy aspekt [Theory of educational problems: psychological and pedagogical aspect]. M.: Pedagogy, 1990. 184 p. (In Russ.)
13. Zak A. Z. Kak opredelit’ uroven’ razvitiya myshleniya studenta [How to determine the level of development of a student’s thinking]. M.: Knowledge, 1982. 96 p. (In Russ.)
14. Vygotsky L. S. Sobraniye sochineniy : v 6 t. T. 2. Problemy obshchey psikhologii / pod red. V. V. Davydova [Collected works: in 6 vols.Problems of general psychology / edited by V. V.Davydov]. M.: Pedagogika, 1982. 504 p.: ill. (In Russ.)
15. Dorofeev S. N. Vysshaya matematika [Higher Mathematics]. M.: LLC “Publishing House “Mir i obrazovanie”” , 2011. 592 p.: ill. (In Russ.)
16. Kudryavtsev L. D. Mysli o sovremennoy matematike i yeye izuchenii [Thoughts on modern mathematics and its study]. M.: Science, 1977, 123 p. (In Russ.)
17. Vygotsky L. S. Sobraniye sochineniy : v 6 t. T. 3. Problemy razvitiya psikhiki / pod red. A. M. Matyushkina [Collected works: in 6 vols. 3. problems of the development of the psyche / edited by A. M. Matyushkin]. M.: Pedagogy, 1983. 368 p.: ill. (In Russ.)\

For citation: Deynega S. A. Components of Geometric-graphic Competence, Formed in the Study of Descriptive Geometry at a Technical University. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 50−63. https://doi.org/10.34130/1992-2752_2023_1_50

VI. Vladimir P. Odinets On the works of three prewar mathematicians from Alma-Ata, Moscow, and Leningrad

https://doi.org/10.34130/1992-2752_2023_1_78

Vladimir P. Odinets – W.P.Odyniec@mail.ru

Text

Abstract. The article considers the works of three mathematicians: I. Akbergenov, specialist in Fredholm integral equations, a student of Professor L. Kantorovich, S. Arshon, specialist in combinatorics and function theory and Professor B. Izvekov, in the field of teaching higher mathematics, who lived accordingly, in Alma-Ata, Moscow and Leningrad and perished in 1938–1942.

Keywords: integral equations, Fredholm equation of second kind, Sarrus rule, combinatorial analysis, asymmetric sequence, vector analysis.

References

1. Akbergenov Ibadulla. The National encyclopaedia. Almaty. Kazak encyclopedijasy, 2004. Vol. 1, p. 13. (In Russ.)
2. Ahmetzhanova A. T. The fate of the academic – consequence of imperial policy of Soviet State. Vestnik KazNU [KazNU Bulletin]. Almaty, 2012, pp. 7–21. (In Russ.)
3. Akbergtnov I. A. On the estimation of the mistake of the approximate solution of the Fredholm integral equation of a second kind by E. Nistrom method. Leningrad. Trudy 2-go Vsesouznogo Matematicheskogo s’ezda (1934). T. 2. Sekcionnye doklady [Proceedings of the 2nd All-Union Mathematical Congress. Vol. 2 (Sectional reports)], 1935, pp. 386–387. (In Russ.)
4. Akbergenov I. A. Upon an approximate solution of the Fredholm integral equations and the determination of its eigenvalues. Mat. sb. [Mathematical collection], 1935, vol. 42. no 6, pp. 679–698. (In Russ.)
5. Matematika v SSSR za sorok let 1917–1947. T. 2. Biobibliograph [Mathematics in the U.S.S.R. after forty years 1917–1957. Vol. 2. Biobibliography]. M.: Fizmatlit, 1959, 819 p. (In Russ.)
6. Akbergenov I. A. Upon an approximate solution of the Fredholm Integral equations and the determination of its eigenvalues. Tashkent: Izd-vo Sredne-Aziatskogo universiteta, T.16, 1937, 48 p. (In Russ.)
7. Arshon S. E. Victims of political terror in U.S.S.R. Arhivnoe delo: P- 48248 [Archival file: P-48248]. (In Russ.)
8. Arshon S.E. Upon a method of combinatorial analysis. Trudy 2- go Vsesouznogo Mathematicheskogo s’ezda, 1934. T. 2. Sekcionnye doklady [Proceedings of the 2nd All-Union Mathematical Congress.Vol. 2 (Sectional reports)]. L.: Izd-vo AN U.S.S.R., 1935, pp. 24–(In Russ.)
9. Arshon S. E. A generalization of the Sarrus rule. Mat. sb. [Mathematical collection], 1935, vol. 42, no 1, pp. 121–128. (In Russ.)
10. Arshon S. E. A property of the arithmetic proportion. Mat. prosv. [Mathematical education], 1936, no 5, pp. 24–28. (In Russ.)
11. Arshon S. E. A proof of the existence of n-valued infinite asymmetrical sequence. Mat. sbornik [Mathematical collection], 1937, vol. 44, no 4, pp. 769–779. (In Russ.)
12. Kirsanov V. S. The books Destroyed: an echo by the Stalin’s terror in Soviet historical science. Sem’ iskustv [Seven arts], no 12. 05.01.(2015), pp. 21–34. (In Russ.)
13. Balach-Izvekova T. B. Vospominaniya moyey zhizni [Memories of my life]. SPb.,2008 (Return). 171 p.; 2009 (Continuation). 114 p.; 2010 (Epilogue). 120 p. (In Russ.)
14. Nauka i nauchnyye rabotniki v SSSR. Ch. V. Nauchnyye rabotniki Leningrada [Science and the scientific workers in the USSR. Part V. Scientific workers of Leningrad]. L.: Izd-vo AN U.S.S.R., 1934. 746 p. (In Russ.)
15. Izvekov B. I. Osnovy vektornogo analiza [A basis of vector analysis]. L.: Izd-vo Kubuch, 1934, 176 p. (In Russ.)
16. Izvekov B. I.. Sbornik zadach po prikladnoy matematike dlya studentov, aspirantov i prepodavateley vtuzov [A collection of problems in applied mathematics for students, past-graduate students and the instructors of higher technical education]. M., L.: Gos.technikoteoreticheskoe izd-vo, 1935. Part 1. 218 p. (In Russ.)\

For citation: Odinets V. P. On the works of three prewar mathematicians from Alma-Ata, Moscow, and Leningrad. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2023, no 1 (46), pp. 78−90. https://doi.org/10.34130/1992- 2752_2023_1_78

Full text

I. Nikolai N. Petrov, Dilshodbek M. Allashkurov To modeling conflicts in cyberspace using matrix games

https://doi.org/10.34130/1992-2752_2022_4_4

Nikolai N. Petrov – Udmurt State University, e-mail: kma3@list.ru

Dilshodbek M. Allashkurov – Urgench State University, Uzbekistan, e-mail: allashkurovdilshod@gmail.com

Text

Annotation. The problem of a conflict in cyberspace between a group responsible for the operation of servers and a group trying to disrupt the operation of these servers is considered. It is assumed that due to limited resources not all of the servers receive additional protection, and one or two servers are under attack. The aim of the attacking side is to increase the probability of bringing down some of the servers. A model of such a conflict is constructed in the form of a
matrix game. An equilibrium situation is found in mixed strategies.

Keywords: cyberspace, matrix game, mixed strategies,equilibrium situation.

References

1. Guts A.K., Vakhniy T. V. Teoriya igr i zashita informacii [Game theory and information protection]. Omsk: Izd-vo Omskogo un-ta, 2013.160 p. (In Russ.)
2. Grobotun E.E. Teoreticheskie osnovy postroeniya sistem zashhity ot kompyuternyx atak dlya avtomatizirovannyx sistem upravleniya [Theoretical foundations for building protection systems against computer attacks on automated systems management]. SPB.: High technologies, 2017. 120 p. (In Russ.)
3. Manshaei M. H., Zhu Q., Alpcan T., Basar T., Hubaux J.-P. Game theory meets network security and privacy. ACM Comput. Surv.Vol. 45, no. 3, Article 25 (June 2013), 39 p.
4. Corona I., Giacinto G., Roli F. Adversarial attacks against intrusion detection systems: Taxonomy, solutions and open issues. /Information Sciences. 2013. Vol. 239, pp. 201-–225.
5. Bykov A. Yu., Shmatova E. S. The Algorithms of Resource Distribution for Information Security Between Objects of an Information System Based on the Game Model and Principle of Equal Security of Objects. Science and Education of the Bauman MSTU. 2015, no 09, pp. 160–187. (In Russ.)
6. Petrosyan L. A., Zenkevich N.A., Shevkoplyas E. V. Teoriya igr [Game Theory]. SPB.: BHV-Peterburg, 2012. 432 p. (In Russ.)

For citation: Petrov N. N., Allashkurov D. M. To modeling conflicts in cyberspace using matrix games. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 4−16. https://doi.org/10.34130/1992-2752_2022_4_4

II. Kirill A. Fofanov The Hausdorff ‘s measure behaviour under the mappings

https://doi.org/10.34130/1992-2752_2022_4_17

Kirill A. Fofanov – Herzen State Pedagogical University of Russia, e-mail: kirfof@mail.ru

Text

Abstract. Alforse’s «principle of lenght and area» gives the estimation of the fraction of the measures of set and its image under the analytical function. In 1974 this result was generalized by N.A.Shirokov by replacing Lebesgue measures whith Hausdorff‘s measures. In this article it will be shown that considering a broader class of functions in the definition of the Hausdorff‘s measure does not change the previous estimation.

Keywords: Hausdorff’s measure, analytical function, measure integral.

References

1. Shirokov N. A. On one generalization of the Alphors theorem. Zap. nauchnyx seminarov LOMI [Notes of LOMI scientific seminars], 1974. Vol. 44, pp. 179–185. (In Russ.)
2. Vinogradov O. L. Matematicheskij analiz: uchebnik [Mathematical Analysis: Textbook] SPb.: BHV-Peterburg, 2021. 752 p. (In Russ.)

For citation: Fofanov K. A. The Hausdorff‘s measure behaviour under the mappings. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 17−32. https://doi.org/10.34130/1992-2752_2022_4_17

III. Ivan I. Lavresh, Vladislav D. Kuznetsov Simulation modeling of the processes of providing IT-services using the method of gradual formalization

https://doi.org/10.34130/1992-2752_2022_4_33

Ivan I. Lavresh – Pitirim Sorokin Syktyvkar State University, e-mail: ilavresh@mail.ru

Vladislav D. Kuznetsov – Information technology center, e-mail: hirufu96@yandex.ru

Text

Annotation. In the article c using the gradual formalization method described by the ability to build processes for providing IT services using simulation modeling to ensure management decisions are made on the effective and efficient workload of departments and the organization as a whole in order to achieve the organization’s business goals.

Keywords: IT-services, simulation modeling, gradual formalization, service Service-desk.

References

1. Uchebnik 4CIO [4CIO : Textbook]. Available at: https://4cio.ru/content/uchebnik_all_2.pdf (accessed: 10.15.2022) (InRuss.)
2. Arsenyev Yu. N. Davydova T. Y. Informacionnyj menedzhment: teoriya i praktika : uchebnik [Information management: theory and practice : textbook] / under the general editorship of Yu. N. Arsenyev. Moscow: KNOGUS. 2022. 438 p. (In Russ.)
3. Petukhov O. A., Morozov A. V., Petukhova E. O. Modelirovanie: sistemnoe, imitacionnoe, analiticheskoe : ucheb. posobie [Modeling: system, simulation, analytical : textbook. manual]. 2nd ed., ispr. and add. St. Petersburg: Publishing House of NWTU, 2008. 288 p. (In Russ.)
4. Kashtaeva S. V. Matematicheskoe modelirovanie : uchebnoe posobie [Mathematical modeling : textbook] / Ministry of Agriculture of the Russian Federation, Federal State Budgetary Educational Institution of Higher Education “Perm Agrarian and Technological University named
   after Academician D.N. Pryanishnikov”. Perm: CPI Prokrost, 2020. 112 p. (In Russ.)
5. Zvonarev S. V. Osnovy matematicheskogo modelirovaniya : uchebnoe posobie [Fundamentals of mathematical modeling : a textbook]. Yekaterinburg: Ural Publishing House. un-ta, 2019. 112 p. (In Russ.)
6. Limanovskaya O. V. Imitacionnoe modelirovanie v AnyLogic 7: 2 Volumes. Ch. 1 : uchebnoe posobie [Simulation modeling in AnyLogic from 7. Part 1 : textbook]. Yekaterinburg: Ural Publishing House. un–ta,152 p. (In Russ.)
7. Margolis N. Y. Imitacionnoe modelirovanie : ucheb. posobie [Simulation modeling : textbook. manual]. Tomsk: Publishing House of Tomsk State University, 2015. 130 p. (In Russ.)
8. Akopov A. S. Kompyuternoe modelirovanie : uchebnik i praktikum dlya SPO [Computer modeling: textbook and workshop for SPO]. Moscow: Yurayt Publishing House, 2019. 389 p. (In Russ.)
9. Zhuravlev R. Illyustrirovanniy ITSM [Illustrated by ITSM]. Moscow: Live Book, 2013. 125 p. (In Russ.)
10. England R. Vvedenie v realniy ITSM [Introduction to real ITSM]. Moscow: Live Book, 2011. 132 p.
11. ITIL i ITSM: opredelenie metodologij, sravnenie, preimushhestva i nedostatki [ITIL and ITSM: definition of methodologies, comparison, advantages and disadvantages]. Available at:
    https://mysmartservice.com/blog/itil-i-itsm (accessed: 10.15.2022). (In Russ.)
12. Biblioteka IT–infrastruktury (ITIL) [IT Infrastructure Library (ITIL).] Available at: https://www.ibm.com/ru-ru/cloud/learn/itinfrastructure-library (accessed: 03.23.2022). (In Russ.)
13. Lavresh I. I., Kuznetsov V. D. Development of technology of simulation modeling of IT services in the processes of digitalization of the Komi Republic / IT-Arktika [IT-Arctic]. 2021. No 4, pp. 3–16. (In Russ.)
14. Anylogic. Available at: https://www.anylogic.ru / (accessed:10.10.2022).

For citation: Lavresh I. I., Kuznetsov V. D. Simulation modeling of the processes of providing IT-services using the method of gradual formalization. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 33−45. https://doi.org/10.34130/1992-2752_2022_4_33

IV. Svetlana A. Deynega, Olga A. Sotnikova Features of building mathematical and graphic competence when studying projective geometry

https://doi.org/10.34130/1992-2752_2022_4_46

Svetlana A. Deynega – Ukhta State Technical University, e-mail: deynega07@mail.ru

Olga A. Sotnikova – Pitirim Sorokin Syktyvkar State University, e-mail: sotnikovaoa@syktsu.ru

Text

Annotation. The article validates the need for the formation of the cognitive and creative component as part of professional competencies among technical university students. The article reveals the essence of this component. Its formation at the initial stage of professional training is recognized to be reasonable. The formation of the cognitive and creative component of mathematical and graphical competence in the study of descriptive geometry is shown to start the mechanism for the development of notions about the ideas and methods of mathematical and graphical modeling.

Keywords: studying projective geometry, mathematical and graphic competence, technical education.

References

1. Kostryukov A.V., Semagina Yu. V. Geometric-graphic language as a basis for the organization of the educational process in the formation of graphic culture of a university student. Nauchno-metodicheskij elektronnyj zhurnal «Koncept» [Scientific and methodological electronic journal “Concept”]. 2018. No. 5 (May), pp. 309–320. Available at: http://econcept.ru/2018/181027.htm (accessed: 23.11.2022). (In Russ.)
2. Guznenkov V. N. Geometric and graphic training at a technical university. Rossijskij nauchnyj zhurnal [Russian Scientific Journal].No. 6, pp. 159–166. (In Russ.)
3. Yakunin V. I., Guznenkov V. N. Geometric and graphic disciplines at the technical University. Teoriya i praktika obshchestvennogo razvitiya [Theory and practice of social development]. 2014. No. 17, pp. 191–195. (In Russ.)
4. Dmitrieva I. M., Ivanov G. S. O professionalnyh kompetenciyah v prepodavanii nachertatelmoj geometrii [About professional competencies in teaching descriptive geometry]. Available at: https://dgng.pstu.ru/conf2017/papers/3/ (accessed: 23.11.2022). (In Russ.)

For citation: Deynega S. A., Sotnikova O. A. Features of building mathematical and graphic competence when studying projective geometry. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 46−51. https://doi.org/10.34130/1992-2752_2022_4_46

V. Natalia A. Zelenina Selection of basic problems in the study of the theme «The equation of a circle in problems with parameters»

https://doi.org/10.34130/1992-2752_2022_4_52

Natalia A. Zelenina – Vyatka State University, e-mail: sezel@mail.ru

Text

Annotation. Ensuring a high quality of teaching mathematics to students is inextricably linked with teaching how to solve creative mathematical problems. These problems traditionally include tasks of high educational, developmental and diagnostic value. The purpose of this research is to develop and describe a teaching methodology for solving problems with parameters based on the allocation of basic (key) problems.

Keywords: teaching methods of mathematics, tasks with parameters, basic (key) tasks, equation of a circle.

References

1. Zdorovenko M. Yu., Zelenina N. A., Krutikhina M. V. The use of various methods for solving problems with a parameter on the Unified State Exam in Mathematics. Nauchno-metodicheskiy elektronniy zhurnal «Kontsept» [Scientific and methodological electronic journal «Concept»]. 2016. No 8, pp. 139–150. Available: http://e-koncept.ru/2016/16176.htm (accessed: 21.11.2022). (In Russ.)
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For citation: Zelenina N. A. Selection of basic problems in the study of the theme «The equation of a circle in problems with parameters». Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 52−66. https://doi.org/10.34130/1992- 2752_2022_4_52

VI. Andrei V. Yermolenko, Anatoliy A. Durkin On the contact problem for a cylindrical panel and a rectangular bar

https://doi.org/10.34130/1992-2752_2022_4_67

Andrei V. Yermolenko – Pitirim Sorokin Syktyvkar State University, e-mail: ea74@list.ru

Anatoliy A. Durkin – Pitirim Sorokin Syktyvkar State University

Text

Annotation. The contact problem for an infinite cylindrical panel and an infinite rectangular beam is analytically solved using the classical theory, a system for determining the interaction zone is built. According to the parameters found numerically from the system, the deflection and contact reactions are determined. The obtained result agrees with the solution obtained by the generalized reaction method.

Keywords: cylindrical panel, contact problem, generalized reaction method.

References

1. Mikhailovskii E. I. Shkola mekhaniki akademika Novozhilova [The Novozhilov School of Mechanics]. Syktyvkar: Publishing House of the Syktyvkar University, 2005. 172 p.
2. Mikhailovsky E.I., Tarasov V.N. Convergence of the generalized reaction method in contact problems with a free boundary. RAN. PMM. [RAS. PMM]. 1993. Vol. 57. Issue 1, pp. 128–136.
3. Michailovskii E. I., Badokin K. V., Yermolenko A. V. The Karman type theory of flat plates without Kirchhoff’s hypotheses. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika.
   Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 1999. No. 3, pp. 181–202.
4. Yermolenko A. V., Osipov K. S. On using Python libraries to calculate plates. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics]. 2019, 4 (33), pp. 86–95.

For citation: Yermolenko A. V., Durkin A. A. On the contact problem for a cylindrical panel and a rectangular bar. Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 67−74. https://doi.org/10.34130/1992-2752_2022_4_67

VII. Maya I. Burlykina Dear Teacher and Grateful Student (in memory of E. I. Mikhailovsky and V. L. Nikitenkov)

https://doi.org/10.34130/1992-2752_2022_4_33

Maya I. Burlykina – Pitirim Sorokin Syktyvkar State University

Text

Abstract. This biographical article is about the work and scientific career of E. I. Mikhailovsky and V. L. Nikitenkov, two distinguished mathematics professors Syktyvkar State University.

Keywords: Syktyvkar State University, anniversary.

For citation: Burlykina M. I. Dear Teacher and Grateful Student (in memory of E. I. Mikhailovsky and V. L. Nikitenkov). Vestnik Syktyvkarskogo universiteta. Seriya 1: Matematika. Mekhanika. Informatika [Bulletin of Syktyvkar University, Series 1: Mathematics. Mechanics. Informatics], 2022, No 4 (45), pp. 75−89. https://doi.org/10.34130/1992- 2752_2022_4_75