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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive

2020, Volume 20, Issue 2


Scientific Part
Mathematics
The external estimate of the compact set by Lebesgue set of the convex function
V. V. Abramova, S. I. Dudov, M. A. Osiptsev
142
Symmetrization in clean and nil-clean rings
P. V. Danchev
154
On the positive solutions of a model system of nonlinear ordinary differential equations
M. M. Kobilzoda, A. N. Naimov
161
On the geometry of three-dimensional pseudo-Riemannian homogeneous spaces. II
N. P. Mozhey
172
On one exceptional case of the first basic three-element Carleman-type boundary value problem for bianalytic functions in a circle
N. R. Perelman
185
Mechanics
Unsteady electromagnetic elasticity of piezoelectrics considering diffusion
N. A. Zverev, A. V. Zemskov, D. V. Tarlakovskii
193
Influence of convolution kernel and beam-hardening effect on the assessment of trabecular bone mineral density using quantitative computed tomography
D. V. Ivanov, I. V. Kirillova, L. Yu. Kossovich, L. V. Bessonov, A. V. Petraikin, A. V. Dol, E. S. Ahmad, S. P. Morozov, A. V. Vladzymyrskyy, K. A. Sergunova, A. V. Kharlamov
205
Mathematical modeling of deposits accumulation on the plastic biliary stent surface for predicting its occlusion
A. G. Kuchumov
220
Single waves in a gas-liquid bubble mixture
V. Sh. Shagapov, M. N. Galimzyanov, U. O. Agisheva
232
Computer Sciences
Survival rate of model populations depending on the strategy of energy exchange between the organisms
E. E. Ivanko, S. M. Chervinsky
241
Markov chain states classification in a tandem model with a cyclic service algorithm with prolongation
V. M. Kocheganov
257
An analysis method of open queueing networks with a degradable structure and instantaneous repair times of systems
I. E. Tananko, N. P. Fokina
266


© Steklov Math. Inst. of RAS, 2025