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1987, Volume 23, Number 5  


People of Soviet science
Nikolaǐ Pavlovich Erugin (on the occasion of his eightieth birthday)
A. V. Bitsadze, A. A. Dorodnitsyn, V. A. Il'in, A. A. Samarskii, A. N. Tikhonov
739

Ordinary Differential Equations
The stability of linear systems with aftereffect. I
N. V. Azbelev, L. M. Berezanskii, P. M. Simonov, A. V. Chistyakov
745
Existence of polar and pseudopolar solutions of autonomous systems of three differential equations. II
T. S. Bud'ko, A. I. Yablonskii
754
On the theory of the fourth Painlevé equation
V. I. Gromak
760
On the quasiperiodic solutions of linear inhomogeneous differential systems
È. I. Grudo
768
On a problem of R. Conti
N. A. Izobov, R. A. Prokhorova
775
On the problem of third-order nonlinear systems with single-valued moving singularities
A. F. Korzyuk
791
On the controllability of linear nonstationary systems
A. A. Levakov
798
Generic properties of conditional exponential stability. XX
V. M. Millionshchikov
806
On the exponential indices of a triangular system and its diagonal approximation
A. M. Nurmatov
814
Perturbation of invariant manifolds. III
G. S. Osipenko
818
On limit cycles of a two-dimensional autonomous system with nonlinearities of third degree
A. E. Rudenok
825
The connection of asymptotics on various infinities of solutions of the second Painlevé equation
B. I. Suleimanov
834
On the structure of the matrix of coefficients of a regular Lappo–Danilevskiǐ system
T. L. Surin
842
Limit cycles of autonomous systems with phase space $\mathbf C^2$
L. A. Cherkas
848

Partial Differential Equations
Formulas for the expansion of given functions in eigenfunction series of a three-point boundary value problem with two parameters
S. I. Gaiduk
852
A problem of Dirichlet type for a third-order linear differential equation
V. V. Dainyak, V. I. Korzyuk
867
Regularization of ill-posed problems by means of a generalized inverse operator
V. M. Zubov
872
A three-point problem for third-order operator-differential equations
N. V. Tsyvis, N. J. Yurchuk
877

Short Communications
An estimate for the difference of the solutions of two holomorphic systems of differential equations
S. S. Belyavsky
882
Classes of third-order systems with no moving critical points, and evolution equations
N. S. Berezkina
885
Third-order reducible ordinary linear differential equations and related nonlinear equations
L. M. Berkovich
887
Apropos a theorem of Wittich
V. N. Gorbuzov, . . Kishkel
891
On solutions in closed form for a system of three differential equations with a functional parameter
N. A. Zboychik
894
On the problem of the existence of systems of two differential equations that do not have solutions with moving transcendental and essentially singular points
I. N. Klimashevskaya, S. G. Kondratenya
897
Conditions for the asymptotic stability of a linear system of special form
G. S. Krechetov
899
On conditionally solvable integro-differential operators
Yu. K. Lando, S. V. Yashchuk
902
On the connection of the first Painlevé equation with the Korteweg–de Vries equation
I. P. Martynov
904
On the theory of the completeness of linear systems with retarded argument of neutral type
S. A. Minyukov, N. N. Stepanyuk
905
Problems of pursuit on the $1$-skeleton of a cube
N. N. Petrov
908
On the solutions of an equation of nonlinear optics
A. A. Samodurov, V. M. Chodnovsky
911
 
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