Contents

Mathematical Notes

Vol. 113, No. 5-6, 2023

Research Articles

Perturbations of an Integer Sequence as Zero Sets of Divisors in Some Spaces of Entire Functions

N. F. Abuzyarova p. 613  abstract

The Tricomi Problem for a Class of Multidimensional Hyperbolic-Elliptic Equations

S. A. Aldashev p. 624  abstract

Sufficient Conditions for the Linear Convergence of an Algorithm for Finding the Metric Projection of a Point onto a Convex Compact Set

M. V. Balashov p. 632  abstract

Contact Vectors of Point Lattices

V. P. Grishukhin p. 642  abstract

Many-Dimensional Duhamel Product in the Space of Holomorphic Functions and Backward Shift Operators

P. A. Ivanov, and S. N. Melikhov p. 650  abstract

Spectral Properties of the Nonsectorial Sturm–Liouville Operator on the Semiaxis

Kh. K. Ishkin p. 663  abstract

Uniform Convergence on Subspaces in the von Neumann Ergodic Theorem with Discrete Time

A. G. Kachurovskii, I. V. Podvigin, and A. Zh. Khakimbaev p. 680  abstract

Estimate of the Second Coefficient of Holomorphic Mappings of a Disk into Itself with Two Fixed Points

O. S. Kudryavtseva, and A. P. Solodov p. 694  abstract

On the Question of the Definability of Certain Classes of Completely Decomposable Abelian Torsion-Free Groups by Their Homomorphism Groups

T. A. Pushkova, and A. M. Sebel’din p. 700  abstract

Slow Convergences of Ergodic Averages

V. V. Ryzhikov p. 704  abstract

On the Solvability of Nonlinear Parabolic Functional-Differential Equations with Shifts in the Spatial Variables

O. V. Solonukha p. 708  abstract

On the Embedding of the First Nonconstructive Ordinal in the Rogers Semilattices

M. Kh. Faizrahmanov p. 723  abstract

Short Communications

Multidimensional Analogs of Theorems about the Density of Sums of Shifts of a Single Function

N. A. Dyuzhina p. 731  abstract

Graded Automorphisms of the Algebra of Polynomials in Three Variables

A. N. Trushin p. 736  abstract

Close Turning Points and the Harper Operator

A. A. Fedotov p. 741  abstract

Research Articles

Implicit Function Theorems for Continuous Mappings and Their Applications

A. V. Arutyunov, S. E. Zhukovskiy, and B. Sh. Mordukhovich p. 749  abstract

Semigroups of Relatively Continuous Binary Relations and Their Isomorphisms

V. I. Varankina, and E. M. Vechtomov p. 760  abstract

On Nonfree Actions of Commuting Involutions on Manifolds

D. V. Gugnin p. 770  abstract

Boundary Distortion and the Schwarzian Derivative of a Univalent Function in a Circular Annulus

V. N. Dubinin p. 776  abstract

On the Growth of Birkhoff Sums over a Rotation of the Circle

A. V. Kochergin p. 784  abstract

Improvement of Nonmonotone Complexity Estimates of \(k\)-Valued Logic Functions

V. V. Kochergin, and A. V. Mikhailovich p. 794  abstract

On a Refinement of the Schneider–Lang theorem

V. A. Podkopaeva, and A. Ya. Yanchenko p. 804  abstract

On Estimates of Uniform Approximations by Rational Fourier–Chebyshev Integral Operators for a Certain Choice of Poles

P. G. Potseiko, and Y. A. Rovba p. 815  abstract

Definition and Properties of Measures of Stability and Instability of Zero Solution of a Differential System

I. N. Sergeev p. 831  abstract

Chebyshev Sets with Piecewise Continuous Metric Projection

I. G. Tsar’kov p. 840  abstract

Landweber Exactness of the Formal Group Law in \(c_1\)-Spherical Bordism

G. S. Chernykh p. 850  abstract

Short Communications

Topologically Mixing Diffeomorphisms on the Infinite-Dimensional Torus

S. D. Glyzin, and A. Yu. Kolesov p. 859  abstract

Refinement of Bakhvalov’s Estimate for the Error of Korobov’s Quadrature Formulas

A. A. Illarionov p. 864  abstract

Bifurcations in the Logistic Equation with Diffusion and Delay in the Boundary Condition

S. A. Kashchenko, and A. O. Tolbey p. 869  abstract

On Properties of Continuous Monotone Functions

M. D. Kovalev, and A. A. Kuleshov p. 874  abstract

Lyapunov Inequality for Second-Order Equation with Operator of Distributed Differentiation

B. I. Efendiev p. 879  abstract