Vol. 63, No. 7, 2023

Computational Mathematics and Mathematical Physics

General Numerical Method

Stability Indicators of Nonnegative Matrices: Parametric and Sparse Cases

V. N. Razzhevaikin p. 1155 abstract

Optimal Control

Sufficient Solvability Conditions for the Problem of Pursuit under an Impulse Action

G. M. Abdualimova, N. A. Mamadaliev and M. Tukhtasinov p. 1166 abstract

On the Existence of Optimal Control in the Problem of Optimizing the Lowest Coefficient of a Semilinear Evolutionary Equation

A. V. Chernov p. 1176 abstract

Conditional Gradient Method for Optimization Problems with a Constraint in the Form of the Intersection of a Convex Smooth Surface and a Convex Compact Set

Yu. A. Chernyaev p. 1191 abstract

Ordinary Differential Equation

Four Classes of Definite Integrals about Hyperbolic and Trigonometric Functions

C. L. Li and W. Chu p. 1199 abstract

Partial Differential Equations

Local Solvability, Blow-Up, and Hölder Regularity of Solutions to Some Cauchy Problems for Nonlinear Plasma Wave Equations: III. Cauchy Problems

M. O. Korpusov and E. A. Ovsyannikov p. 1218 abstract

Parasitic Eigenvalues of Spectral Problems for the Laplacian with Third-Type Boundary Conditions

S. A. Nazarov p. 1237 abstract

Inverse Problems for the Helmholtz Equation on Finding the Right-Hand Side with Nonlocal Integral Observation

K. B. Sabitov p. 1254 abstract

On a Method for Solving a Mixed Boundary Value Problem for a Parabolic Equation Using Modified Sinc-Approximation Operators

A. Yu. Trynin p. 1264 abstract

Solution Blow-Up and Global Solvability of the Cauchy Problem for the Equation of Moderately Long Longitudinal Waves in a Viscoelastic Rod

Kh. G. Umarov p. 1285 abstract

Mathematical Physics

Laser-Induced Thermoelastic Response in an Isotropic Medium Having Variable Material Moduli

Aktar Seikh, Soumen Shaw and Smita Pal (Sarkar) p. 1300 abstract

Quasi-Gasdynamic Model and Numerical Algorithm for Describing Mixtures of Different Fluids

T. G. Elizarova and E. V. Shil’nikov p. 1319 abstract

A Modified Secant Method for Entropic Lattice Boltzmann Equations

O. V. Ilyin p. 1332 abstract

On the Accuracy of Shock-Capturing Schemes Calculating Gas-Dynamic Shock Waves

V. A. Kolotilov, A. A. Kurganov, V. V. Ostapenko, N. A. Khandeeva and S. Chu p. 1341 abstract

Duality Method for Solving 3D Contact Problems with Friction

R. V. Namm and G. I. Tsoy p. 1350 abstract

A Modified Runge–Kutta Scheme for the Generalized Benjamin–Bona–Mahony–Burgers Equation