Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98.

МATHEMATICS

5–12

Bazhenov Dmitry S. Rings with a bounded graded index of nilpotency // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 5–12. DOI: 10.17223/19988621/98/1

13–27

Bondarchuk Ivan S., Gerasimchuk Anna L., Glukhova Lyubov B., Marchenko Ekaterina S., Kychkin Aisen A., Kychkin Anatoly K. A study of kinetic characteristics of biocidal action of copper oxide nanoparticles during climatic destruction and biocorrosion under extreme conditions of cold climate // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 13–27. DOI: 10.17223/19988621/98/2

28–43

Maiyer Fedor F., Tastanov Meyrambek G., Utemissova Anar A. Estimates of analytical functions whose ranges of values are contained in a circular lune // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 28–43. DOI: 10.17223/19988621/98/3

44–50

Senashov Vladimir I. A criterion of nonsimplicity of a group with a finite element // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 44–50. DOI: 10.17223/19988621/98/4

MECHANICS

51–61

Azarov Daniil A. Formulation of constitutive relations for nonlinear elastic media using a mechanical–geometric model with diagonal bonds // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 51–61. DOI: 10.17223/19988621/98/5

62–69

Arkhipov Vladimir A., Basalaev Sergey A., Perfil’eva Kseniya G., Poryazov Vasiliy A. Method and results of an experimental study of heat losses in a combustion chamber of a solid-propellant propulsion system // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 62–69. DOI: 10.17223/19988621/98/6

70–83

Borzenko Evgeniy I., Garbuzov Dmitriy N., Efremov. Maksim A. Numerical modeling of non-newtonian fluid flows in an apparatus with blade mixers // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 70–83. DOI: 10.17223/19988621/98/7

84–96

Valiullina Vilena I., Galeev Rushan R., Zinnatullin Rasul R., Musin Ayrat A., Kovaleva Liana A. Impact of the electromagnetic field on the properties of porous materials containing complex colloidal mixtures of organic compounds // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 84–96. DOI: 10.17223/19988621/98/8

97–107

Valikhov Vladimir D., Khrustalyov Anton P., Zhukov Il’ya A., Vorozhtsov Aleksandr B. Effect of basalt fibers on the structure and mechanical properties of AK12 aluminum alloy // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 97–107. DOI: 10.17223/19988621/98/9

108–119

Larkin Dmitriy O., Eremin Ivan V. Investigation of a two-phase flow in the nozzles of solid-propellant rockets // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 108–119. DOI: 10.17223/19988621/98/10

120–135

Min’kov Leonid L., Gimaeva Nataliya R., Dil’ Diana V. Numerical study of the transition to a steady-state operating mode of a nozzleless propulsion system with a viscoelastic cylindrical charge // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 120–135. DOI: 10.17223/19988621/98/11

136–150

Pavlov Mikhail S., Pavlyuk Yuriy A., Pyshnograi Grigoriy V. Effect of rheologocal properties of polymer melts on kinematics of their flows in converging channeles // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 136–150. DOI: 10.17223/19988621/98/12

151–165

Starchenko Aleksandr V., Danilkin Evgeniy A., Leshchinskiy Dmitriy V. Numerical simulation of the solar radiation effect on the aerodynamics, heat exchange, and pollution transfer in a street canyon // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 151–165. DOI: 10.17223/19988621/98/13

166–181

Shablovskiy Oleg N. Unstable perturbations in a swirling flow of an ideal incompressible fluid in the regions with open boundaries // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. P. 166–181. DOI: 10.17223/19988621/98/14