Vol. 67, No. 5, 2023

Russian Mathematics

On the Dirichlet Problem in Rectangular Domain for Lavrentiev–Bitsadze Equation

A. A. Abashkin p. 1 abstract

On Fractional Powers of the Schrödinger Operator with a Potential Singular on Manifolds

T. N. Alikulov and A. R. Khalmukhamedov p. 8 abstract

Reconstruction of the Cauchy–Riemann Operator by Complex Integration Operators along Circles

N. P. Volchkova and Vit. V. Volchkov p. 16 abstract

A Classical Solution to a Hyperbolic Differential-Difference Equation with a Translation by an Arbitrary Vector

N. V. Zaitseva and A. B. Muravnik p. 29 abstract

Determining the Jump of a Function of m-Harmonic Bounded Variation by Its Fourier Series

A. A. Kelzon p. 35 abstract

Exact Regions of Mutual Variation of Coefficients of Holomorphic Self-Maps of a Disc with Fixed Points

O. S. Kudryavtseva p. 41 abstract

On the Best Simultaneous Approximation of Functions in the Bergman Space B₂

Kh. M. Khuromonov p. 50 abstract

On One Approach to the Study of the Periodic Problem for Random Differential Equations

S. V. Kornev, P. S. Korneva and N. E. Iakusheva p. 60 abstract

Asymptotics of the Exterior Conformal Modulus of a Quadrilateral under Stretching Map

S. R. Nasyrov and G. V. Nguyen p. 66 abstract

Effectively Infinite Classes of Numberings of Computable Families of Reals

M. Kh. Faizrahmanov p. 72 abstract

A New Generalization of Metric Spaces Satisfying the T₂-Separation Axiom and Some Related Fixed Point Results

Y. Touail p. 76 abstract