Vol. 61, No. 4, 2025

Differential Equations

ORDINARY DIFFERENTIAL EQUATIONS

Explicit Formulas for the Coefficients in the Lappo-Danilevsky Solution of Linear Ordinary Differential Equations

A. A. Golubkov p. 415 abstract

Existence Theorem for Weak Solutions of a Stochastic Differential–Difference Hybrid System with Continuous Coefficients

A. A. Levakov p. 426 abstract

Distribution of Spectrum of the Weber Operator Perturbed by the Dirac Delta Function

A. S. Pechentsov p. 440 abstract

PARTIAL DIFFERENTIAL EQUATIONS

Correctness Analysis of a Boundary Value Problem for Stationary Magnetohydrodynamics Equations with Variable Coefficients

G. V. Alekseev, and Yu. E. Spivak p. 452 abstract

Boundary Value Problem for Stationary Magnetohydrodynamic Equations of Heat-Conducting Fluid with Variable Coefficients

R. V. Brizitskii p. 470 abstract

Classical Solution to a Mixed Problem with the Dirichlet and Wentzel Conditions for the Biwave Equation with Nonlinear Lower Terms

V. I. Korzyuk, and J. V. Rudzko p. 485 abstract

Elastic Junctions of a Plate with Rods and Self-Adjoint Extensions of Differential Operators

S. A. Nazarov p. 504 abstract

Operator Methods for Investigating Stability and Bifurcation Problems in a Reaction–Diffusion System and Applications

M. G. Yumagulov, N. A. Vasenina, and R. I. Gabdrahmanov p. 525 abstract

Classical Solutions of One Multidimensional Hyperbolic Equation with Incommensurable Translations in Lower Derivatives

N. V. Zaitseva p. 542 abstract

INTEGRAL AND INTEGRO-DIFFERENTIAL EQUATIONS

On the Lower Bound of the Hypersingular Operator in Peridynamics Problems

Sh. A. Alimov, and Sh. N. Sheraliev p. 550 abstract

Finite Velocity of Propagation of Perturbations for a One-Dimensional Wave Integro-Differential Equation with a Fractional-Exponential Memory Function

D. V. Georgievskii, and N. A. Rautian p. 555 abstract

Contents

Differential Equations

ORDINARY DIFFERENTIAL EQUATIONS

PARTIAL DIFFERENTIAL EQUATIONS

INTEGRAL AND INTEGRO-DIFFERENTIAL EQUATIONS