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JOURNALS // Chebyshevskii Sbornik // Archive

2024, Volume 25, Issue 1


On some methods of evaluating irrationality measure of the function $\arctan x$ values
M. G. Bashmakova, N. V. Sycheva
5
Quadratic forms corresponding to the faces of the Voronoi domain of perfect form in six variables
O. Kh. Gulomov
16
Nonlinear method of angular boundary functions for singularly perturbed parabolic problems with cubic nonlinearities
A. I. Denisov, I. V. Denisov
26
Uniform estimates for oscillatory integrals with smooth phase
I. A. Ikromov, A. R. Safarov
42
On estimates for trigonometric integrals with quadratic phase
I. A. Ikromov, A. R. Safarov, A. T. Absalamov
52
Research of the structure of the Liouville foliation of an integrable elliptical billiard with polynomial potential
S. E. Pustovoitov
62
On congruence lattices of algebras with an operator and the symmetric main operation
V. L. Usoltsev
103
On the problem of abstract characterization of universal graphic automata
R. A. Farakhutdinov
116
A generalisation of Legendre's three-square theorem
H. Al-Assad
127
On the number of isohedral polyominoes
A. V. Shutov, À. À. Mokrova
138

BRIEF MESSAGE
$Wt-$ distance over $b-$ metric space
E. Almukhur, M. Kusini, A. Alnana, M. Al-Labadi
155
On coprime elements of the Beatty sequence
A. V. Begunts, D. V. Goryashin
164
On some product of $\mathrm{SM}$-groups
D. V. Gritsuk, A. A. Trofimuk
170
Elimination of maximal jumps
I. B. Zhukov, O. Yu. Ivanova
176
On simultaneous approximations of some hypergeometric functions
P. L. Ivankov
184

HISTORY OF MATHEMATICS AND APPLICATIONS
An example of constructing a mathematical model for solving a practice-oriented problem
S. V. Danilenko, Yu. M. Martynyuk, I. Yu. Rebrova
192
Acoustic radiation of a spheroid streamlined by a stationary flow of an ideal liquid
L. A. Tolokonnikov, S. L. Tolokonnikov
205


© Steklov Math. Inst. of RAS, 2025