Volume 18 (2021), N 1

Differential equations, dynamical systems and optimal control

Chouader R., Benyoucef S., Bendjeddou A.
Kolmogorov differential systems with algebraic limit cycles, pp. 1-8.
PDF DOI 10.33048/semi.2021.18.001

Kozhanov A. I.
Initial-boundary value problems for degenerate hyperbolic equations, pp. 43-53. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.004

Islomov B. I., Alikulov E. K.
Analogues of the Cauchy-Goursat problem for a loaded third-order hyperbolic type equation in an infinite three-dimensional domain, pp. 72-85.
PDF DOI 10.33048/semi.2021.18.007

Belonogov V. A., Pyatkov S. G.
On the regular solvability of some classes of transmission problems in a cylindrical space domain, pp. 176-206.
PDF DOI 10.33048/semi.2021.18.015

Titova A. A.
On the shape of the free-surface problem of an ideal incompressible fluid flow with a singular sink at the top of a triangular ledge at the bottom, pp. 207-236. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.016

Kasri A.
A frictional contact problem with damage in viscoplasticity, pp. 255-281.
PDF DOI 10.33048/semi.2021.18.019

Sazhenkov S. A., Fankina I. V., Furtsev A. I., Gilev P. V., Gorynin A. G., Gorynina O. G., Karnaev V. M., Leonova E. I.
Multiscale analysis of a model problem of a thermoelastic body with thin inclusions, pp. 282-318.
PDF DOI 10.33048/semi.2021.18.020

Besova M. I., Kachalov V. I.
On a nonlinear differential equation in a Banach space, pp. 332-337. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.022

Probability theory and mathematical statistics

Sakhanenko A. I., Wachtel V. I., Prokopenko E. I., Shelepova A. D.
On the asymptotics of the distribution of the exit time beyond a non-increasing boundary for a compound renewal process, pp. 9-26. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.002

Discrete mathematics and mathematical cybernetics

Makhnev A. A., Belousov I. N., Paduchikh D. V.
Inverse problems of graph theory: graphs without triangles, pp. 27-42. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.003

Fedoryaeva T. I.
On radius and typical properties of n-vertex graphs of given diameter, pp. 345-357.
PDF DOI 10.33048/semi.2021.18.024

Mathematical logic, algebra and number theory

Zenkov A. V., Isaeva O. V.
On variety N of normal valued m-groups, pp. 54-60.
PDF DOI 10.33048/semi.2021.18.005

Selivanov V. L.
Effective Wadge hierarchy in computable quasi-Polish spaces, pp. 121-135.
PDF DOI 10.33048/semi.2021.18.010

Altayeva A. B., Kulpeshov B. Sh.
On almost omega-categoricity of weakly o-minimal theories, pp. 247-254.
PDF DOI 10.33048/semi.2021.18.018

Korobov A. A., Korobov O. A.
On the discriminant of a quadratic field with intermediate fractions of negative norm and the decomposability of its representing polynomial, pp. 319-331. [Russian, English abstract]
PDF DOI 10.33048/semi.2021.18.021

Kogabaev N. T.
On closure of configurations in freely generated projective planes, pp. 358-368.
PDF DOI 10.33048/semi.2021.18.025

Computational mathematics

Kazantsev I. G., Mukhametzhanova B. O., Iskakov K. T.
Detection of the corner structures in 3D arrays using scalable masks, pp. 61-71.
PDF DOI 10.33048/semi.2021.18.006

Derevtsov E. Yu., Maltseva S. V.
Recovery of a vector field in the cylinder by its jointly known NMR-images and ray transforms, pp. 86-103.
PDF DOI 10.33048/semi.2021.18.008

Real, complex and functional analysis

Kopylov A. P.
Unique determination of conformal type for domains. III, pp. 104-111.
PDF DOI 10.33048/semi.2021.18.009

Shlyk V. A.
Removable sets for Sobolev spaces with Muckenhoupt A1-weight, pp. 136-159.
PDF DOI 10.33048/semi.2021.18.012

Aseev V. V.
Some remarks on Möbius structures, pp. 160-167.
PDF DOI 10.33048/semi.2021.18.013

Shamoyan F. A., Bednazh V. A., Kustova V. A.
Blaschke product in Privalov classes, pp. 168-175.
PDF DOI 10.33048/semi.2021.18.014

Suragan D., Mustafa M.
A note on Hardy type inequalities for quaternion-valued functions, pp. 338-344.
PDF DOI 10.33048/semi.2021.18.023

Dubinin V. N.
Some remarks on rotation theorems for complex polynomials, pp. 369-376.
PDF DOI 10.33048/semi.2021.18.026

Geometry and Topology

Mozhey N. P.
Three-dimensional homogeneous spaces of nonsolvable Lie groups with equiaffine connections of nonzero curvature, pp. 237-246.
PDF DOI 10.33048/semi.2021.18.017

Mathematical life

Kutateladze S. S.
A few words about probability and statistics (on the Occasion of the 90th birthday of Aleksandr Borovkov), pp. A1-A3.
PDF DOI 10.33048/semi.2021.18.011

© Sobolev Institute of Mathematics, 2004