Ordinary Differential Equations


On the theory of necessary second order optimality conditions. I E. E. Barbashina

199 

The differential equation that is connected with the problem of the conformal mapping of a circular pentagon with a slit È. N. Bereslavskii

214 

The periodic oscillations with large amplitude of certain classes of nonlinear systems Ya. V. Bykov, R. Kabulov

223 

The structure of the solutions of a certain system of two differential equations. II È. I. Grudo

230 

On the gametheoretical problem of deflection N. N. Krasovskii

243 

Linear differential systems V. N. Laptinskii

249 

The complete controllability of a linear system with lag S. A. Minyuk

254 

Linear differential pursuit games in the presence of lags M. S. Nikol'skii

260 

On a conjecture of Smale V. A. Pliss

268 

The stability of dynamical systems on a given time interval V. D. Furasov

283 

The behavior of the solution of a boundary value problem for a system of ordinary differential equations with a small parameter multiplying the derivative A. A. Shishkin

290 

Linear dynamical systems with control F. A. Sholokhovich

300 

Partial Differential Equations


The index and the normal solvability of a general elliptic boundary value problem with a finite group of shifts on the boundary A. B. Antonevich

309 

On the Gevrey theory for parabolic potentials. IV, V L. I. Kamynin

318 

Some new relations between control systems and equations of mathematical physics. I E. M. Polishchuk

333 

The uniqueness of a solution of the Cauchy problem for second order equations V. S. Ryzhii

349 

Asymptotically bilateral methods of solution of partial differential equations V. K. Saul'ev

362 

Short Communications


The divergence on a set of positive measure of the Riesz means of kernels of fractional order V. A. Il'in, Sh. A. Alimov

372 

The solutions of the equation $\Delta \Delta u=f$ in a piecewise smooth domain V. A. Koldorkina

374 

On the question of the stability in the large of a certain class of nonlinear control systems D. A. Ovsyannikov

377 

Discrete groups of problems E. N. Petrov

380 

A plane boundary value problem for determination of the initial stresses in a soil formation that is anisotropic with respect to water permeability V. A. Ryzhkov, P. I. Kharitonenko

383 