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Ordinary Differential Equations
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Uniform approximations to the solutions of certain singularly perturbed nonlinear equations
Yu. P. Boglaev, A. V. Zhdanov, V. G. Stel'makh
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395–406 |
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A necessary condition for the system of eigen- and associated functions of an ordinary differential operator to be a basis in $L_2(0,1)$
S. K. Voronina
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407–417 |
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Correctness of an optimal control problem with a variable right end and an integral quadratic efficiency criterion
T. R. Gichev
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418–424 |
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The complex centers and foci of a second order differential equation
È. I. Grudo
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425–434 |
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The spectrum of a degenerate boundary value problem
A. M. Zverkin
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435–441 |
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Stability in the large of the zero solution of a second order autonomous system
I. G. Egorov
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442–450 |
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Controllability of general differential systems
T. S. Kalyuzhnaya
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451–459 |
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A problem on the construction of comparison functions in the theory of the stability of motion
R. O. Ramirez Inostroza
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460–466 |
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Almost reducible systems with quasiperiodic coefficients
N. S. Fal'ko
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467–473 |
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Partial Differential Equations
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Normal solvability of the generalized Dirichlet problem for a certain class of nonelliptic equations
B. G. Ararktsyan, G. G. Kazaryan
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474–481 |
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A second order degenerate elliptic equation in Hilbert space
L. I. Vainerman
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482–491 |
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An application of the contour integral method to the solution of the Cauchy problem for certain higher order parabolic systems with variable coefficients
N. M. Mamedov
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492–498 |
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The absolute convergence of Fourier series in generalized Nikol'skiǐ classes
V. S. Serov
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499–503 |
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A problem with a contact discontinuity for a system of three quasilinear equations
A. D. Sidorenko
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504–511 |
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Integral Equations and Integral-Differential
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A nonlinear integro-differential system of transport equations
V. V. Kulinich, S. F. Morozov
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512–521 |
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On the approximate solution of certain singular integral equations with shift
N. Ya. Tikhonenko
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522–526 |
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The construction of an asymptotic solution of a system of linear integro-differential equations of rational rank
N. I. Shkil', A. N. Voronoi
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527–539 |
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Short Communications
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Reducible completely integrable systems
V. V. Amel'kin, I. V. Gaishun, L. N. Gaishun
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540–542 |
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On the question of the stability of the solutions of second order systems in critical cases
N. G. Bulgakov
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543–545 |
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The semiperiodic Dirichlet problem for a class of equations of mixed type
T. Sh. Kal'menov
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546–547 |
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The solvability of boundary value problems on small intervals
A. Ya. Lepin
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548–550 |
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A third order linear differential equation
R. R. Mkrtumyan
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551–553 |
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Correctness of a boundary problem for differential-operator equations in a Banach space
V. P. Rudakov
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554–555 |
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Regularization of linear differential equations with constant operators in the degenerate case
N. A. Sidorov
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556–560 |
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Generalized solvability of a certain boundary value problem for the wave equation
N. G. Sorokina
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561–564 |
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People of Soviet science
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Konstantin Sergeevič Sibirskiǐ (on the occasion of his fiftieth birthday)
V. A. Andrunakievich, N. P. Erugin, Yu. S. Bogdanov
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565–570 |
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