Vol. 63, No. 9, 2023

Computational Mathematics and Mathematical Physics

General Numerical Methods

Constructive Algorithm to Vectorize P ⊗ P Product for Symmetric Matrix P

A. I. Glushchenko and K. A. Lastochkin p. 1559 abstract

Calculation of nth Derivative with Minimum Error Based on Function’s Measurement

A. S. Demidov and A. S. Kochurov p. 1571 abstract

Numerical Method for Estimating the Growth Rate of the Rounding Error in Uniform Metric

M. I. Zuev and S. I. Serdyukova p. 1580 abstract

On the Uniqueness of Solution to Systems of Linear Algebraic Equations to Which the Inverse Problems of Gravimetry and Magnetometry Are Reduced: A Regional Variant

I. I. Kolotov, D. V. Lukyanenko, I. E. Stepanova, A. V. Shchepetilov and A. G. Yagola p. 1588 abstract

Optimal Control

Gradient-free Federated Learning Methods with l₁ and l₂-randomization for Non-smooth Convex Stochastic Optimization Problems

B. A. Alashqar, A. V. Gasnikov, D. M. Dvinskikh and A. V. Lobanov p. 1600 abstract

Numerical Algorithm for Source Determination in a Diffusion–Logistic Model from Integral Data Based on Tensor Optimization

T. A. Zvonareva, S. I. Kabanikhin and O. I. Krivorotko p. 1654 abstract

Partial Differential Equations

Interaction of Boundary Singular Points in an Elliptic Boundary Value Problem

A. M. Bogovskii p. 1664 abstract

Constructing Solutions of Cauchy Type Integral Equations by Using Four Kinds of Basis

M. Yaghobifar and F. Hosseini Shekarabi p. 1671 abstract

Mathematical Physics

Supplement to the Classical Result of A.N. Tikhonov on Electromagnetic Sensing for a Medium with Thin Layers

A. S. Barashkov p. 1681 abstract

Inverse Problems for the Diffusion–Drift Model of Charging of an Inhomogeneous Polar Dielectric

R. V. Brizitskii, N. N. Maksimova and A. G. Maslovskaya p. 1685 abstract

Three-Dimensional Numerical Transfer Model Using a Monotonized Z-Scheme

N. M. Kashchenko, S. A. Ishanov, E. V. Zubkov and L. V. Zinin p. 1700 abstract

Universal Approach to Analysis of Dissipation Properties of a Numerical Method for Solving Gas Dynamic Equations

P. V. Chuvakhov, I. O. Pogorelov and K. V. Shubin p. 1708 abstract

The Effect of Nonlocal Scale Value and Phase Lags on Thermoelastic Waves in a Multilayered LEMV/CFRP Composite Cylinder

S. Mahesh, R. Selvamani and F. Ebrahimi p. 1717 abstract

Influence of Damping of a Compliant Surface on Inviscid Instability of Overlying Incompressible Boundary Layer

I. V. Savenkov p. 1731 abstract

Computer Science

Aggregation and Decomposition of Systems of Partial Differential Equations and Control Systems with Distributed Parameters