Ordinary Differential Equations


Singular perturbations in a linear control problem with a quadratic functional V. Ya. Glizer, M. G. Dmitriev

1915 

The structure and periodicity of the solutions of a certain twodimensional system of differential equations P. B. Golokvoschyus

1922 

Limit cycles and algebraic integrals in the case of a center M. V. Dolov

1935 

Lacunae in the spectrum of a fourth order differenetial operator with periodic coefficients V. A. Erovenko

1942 

The stability of the rotation number of a doubly periodic differential equation E. K. Ershov

1949 

The asymptotic behavior of the solution of the general boundary value problem for singularly perturbed systems of ordinary differential equations of conditionally stable type V. A. Esipova

1956 

Controllability of linear autonomous systems in the presence of constraints on the control V. I. Korobov, A. P. Marynych, E. N. Podolskii

1967 

Fractional powers of degenerate differential operators V. P. Orlov

1980 

Existence of Ljapunov–Krasovskiǐ functions with homogeneous derivatives, by virtue of the equation L. É. Reiziņš

1990 

The Cauchy problem for the equation $Ax'(t)+Bx(t)=f(t)$ A. G. Rutkas

1996 

The topological structure of a neighborhood of a singular point of a differential equation M. E. Sagalovich

2011 

The boundedness of the infinitely continuable solutions of a system of two differential equations with quadratic right hand sides È. S. Shpigelman

2019 

Partial Differential Equations


Completely integrable equations in variational derivatives V. G. Zadorozhniy

2027 

The generalized Neumann–Tricomi problem V. P. Egorov

2040 

The solution of certain boundary value problems of the theory of harmonic functions I. P. Krasnov

2052 

Strong and weak extension of differential operators S. M. Shugrin

2067 

Short Communications


Generation of a structurally stable, doubly asymptotic trajectory in a system with a slowly changing variable V. N. Belykh

2083 

An existence and uniqueness theorem for the solution of linear differentialdifference equations with deviating argument A. I. Dashevskii

2086 

The oscillation on a finite time interval of the projections of the solutions of systems of ordinary differential equations Yu. I. Domshlak

2089 

A certain property of the oscillating solutions of nonlinear second order equations A. G. Katranov

2092 

A certain class of third order systems with a singlevalued solution I. A. Konoplyanik

2094 

The stochastic stability of the characteristic exponents of the variational equations of smooth dynamical systems V. M. Millionshchikov

2097 

The existence of a solution of a certain nonlinear boundary value problem L. V. Rakin

2100 

Solution of the problem of the center and focus for a Liénard system with polynomial coefficients A. P. Sadovskii

2102 

People of Soviet science


Михаил Алексеевич Лаврентьев (к 75летию со дня рождения)

2105 