Differ. Uravn., 1983, Volume 19, Number 12

JOURNALS // Differentsial'nye Uravneniya // Archive

1983, Volume 19, Number 12

Ordinary Differential Equations
	The structure of the Persidskiǐ spectrum of a second-order linear system L. Ya. Adrianova	2027
	Weak regularity and Green functions of linear extensions of dynamical systems I. U. Bronshtein	2031
	Singular points of differential equations with nonoriented trajectories on a plane A. A. Kadirov	2039
	Equations of motion of mechanical systems R. G. Mukharlyamov	2048
	Homeomorphism of dynamical systems in the neighborhood of a stable invariant manifold A. A. Reinfeld	2056
	Exact lower and upper bounds of the highest and lowest characteristic exponents of a two-dimensional system with bounded perturbations A. G. Surkov	2065
	Solvability of a boundary value problem for a second-order ordinary differential equation with a nonsummable singularity Ya. V. Tsepitis	2071

Partial Differential Equations
	Periodic solutions of equations of parabolic type with small parameters A. B. Vasil'eva	2076
	Uniform estimates for solutions of hyperbolic equations with a small parameter multiplying the highest derivatives L. R. Volevich, M. G. Dzhavadov	2082
	Differential properties of functions on the sphere G. V. Zhidkov	2090
	Solution of a boundary value problem of the theory of scattering of waves by a finite system of cylindrical inclusions in a rectangular waveguide region E. A. Ivanov, A. V. Moshinskii	2101
	The Cauchy problem with initial jump for singularly perturbed linear hyperbolic equations degenerating into a first-order equation K. A. Kasymov, B. M. Kadykenov	2114

Numerical methods
	A parabolic system of quasilinear equations. I V. A. Galaktionov, S. P. Kurdyumov, A. A. Samarskii	2123
	The Rothe-Galerkin method for a class of linear nonstationary systems A. G. Zarubin, M. F. Tiunchik	2141
	Approximate solution of second-order functional-differential equations A. G. Kamenskii	2148
	Estimates for the rate of convergence in semidiscretization of evolution equations S. I. Piskarev	2153

Short Communications
	Investigation of a class of nonlinear differential games A. A. Azamov	2160
	A problem of vibration of a finite string A. I. Vahabov	2163
	An inverse problem for a quasilinear equation of parabolic type V. M. Volkov	2166
	The measure of complexity of functional-differential equations G. G. Islamov	2170
	Behavior of solutions of boundary value problems for the biharmonic equation in domains with corner points L. V. Maslovskaya	2172
	Periodic solutions of singularly perturbed systems of differential equations A. K. Orlov	2176
	Condition for localization of the spectrum of a Sturm–Liouville boundary value problem on the positive half axis O. A. Plaksina	2177
	The method of integro-differential equations in a problem of synthesis of linear optimal systems with lag on an infinite time interval A. M. Rodionov	2179
	Criteria for the oscillatory behavior of solutions of equations of elliptic type A. Toraev	2182
	Solvability of a singular integral equation with two shifts A. P. Shilin	2187