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1973, Volume 9, Number 5  


Ordinary Differential Equations
On the distinguishing problem for $N_2$ in $R^n$
A. F. Andreev
791
Differential inequalities and the structure of the integral vortex of systems of functional differential equations of neutral type
R. R. Akhmerov, A. E. Rodkina
797
The optimal control problem under constraints on the phase coordinates
G. M. Begalishvili
807
Autooscillations of arbitrary period
V. I. Voilokov
815
Investigation of the neighborhood of a family of invariant toroidal manifolds
A. S. Gurtovnik, Yu. I. Neimark
821
A boundary value problem for systems of conditionally stable type with different small parameters multiplying the higher derivatives
T. D. Kozlovskaya
832
The stability of a program manifold. I
I. A. Mukhametzyanov
846
A certain theorem on the characteristic exponents of not almost reducible systems of linear differential equations with almost periodic coefficient matrices
V. L. Novikov
857
The absence of the value of a pursuit game
N. N. Petrov
860
On the question of the regularization of linear boundary value problems
L. F. Rakhmatullina, A. G. Terent'ev
868
The method of initial functions for equations of superneutral type
V. P. Skripnik
874
Singlevaluedness of movable singular points of a certain equation
L. P. Sulima
880

Partial Differential Equations
Pseudodifferential operators in $R^n$. I
A. A. Kuleshov
890
Essential and nonessential boundary sets for the Neumann problem
E. I. Moiseev
901
Equations of continuum mechanics
V. M. Šalov
912

Integral Equations
The method of Volterra integral equations in eigenvalue problems with several parameters
B. A. Bel'tyukov, N. N. Kochetkov
922
A certain class of integral equations
A. G. Ramm
931

Short Communications
The qualitative behavior of the real solutions of the first Painlevé equation
D. A. Bartashevich
942
Certain critical cases for equations of neutral type with small lag
A. B. Vasil'eva, A. A. Plotnicov
945
The Picard method
N. P. Erugin
947
A necessary and sufficient condition for the discreteness of the spectrum of a monomial operation in the matrix case
G. A. Kalyabin
951
Invariance of a certain linear system with lag
V. P. Kirlitsa
955
Preservation of the asymptotic stability property in the case of a zero root
G. S. Krechetov
958
Inequalities of the Ważewski inequality type for the system $x^{"}=A(t)x$
V. N. Laptinskii
961
The convergence properties of a third order differential equation
E. A. Nazarov
965
A certain generalization of three-dimensional harmonic functions
Yu. N. Nemish
967

People of Soviet science
Lev Dmitrievič Kudrjavcev (on his fiftieth birthday)
N. P. Erugin, S. M. Nikol'skii, G. N. Yakovlev
969
 
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