Geodesic

Volume 25 (1989) no. 6

Sommaire

A topological invariant in pursuit problems
p. 923-929
Construction of sequences of multiple-period-increase bifurcations of solutions of nonlinear ordinary differential equations
p. 929-933
Preserving the sign of the Green function of a two-point boundary value problem for an $n$th-order functional-differential equation
p. 934-937
Control of programmed motion with respect to some of the coordinates
p. 938-942
Examples of perturbations of invariant manifolds
p. 943-950
The problem of the center and focus for analytic systems with a zero linear part. II
p. 950-956
The averaging method in some boundary value problems
p. 956-964
The existence of nonzero solutions of a boundary value problem that arises in combustion theory
p. 964-974
A new approach to studying boundary value problems with generalized $L_2$ solutions
p. 975-982
Properties of the structures of magnetic surfaces in plasma
p. 983-989
Nonlinear diffusion and the stratification process
p. 989-993
A problem of optimal variable control for the heat conduction process
p. 994-1000
An inverse problem for a second-order differential equation in a Banach space
p. 1000-1009
Boundary value problems for a degenerate parabolic-hyperbolic equation
p. 1009-1015
The Dirichlet problem for second-order elliptic equations in a half-space in a class of functions of polynomial growth
p. 1015-1023
A Carleman-Vekua equation with a singular point
p. 1024-1028
A nonstandard boundary value problem that contains a small parameter
p. 1028-1035
Some boundary value problems for elliptic equations whose order degenerates
p. 1035-1042
Averaging of elastoplastic media in the case of bulk loads
p. 1043-1045
Necessary conditions of Copa--Moir type for a Goursat--Darboux system
p. 1045-1047
Integration in closed form of a class of Fuchsian equations and its applications
p. 1048-1050
An estimate for the rate of convergence of successive Chaplygin approximations for a parabolic system of functional-differential equations
p. 1050-1052
Asymptotic similarity of sets and polynomials
p. 1052-1053
The basis property of root functions of operators with multipoint boundary conditions
p. 1053-1056
Quadratic zero-systems of differential equations
p. 1056-1058
On the structure of the pre-image of zero of a nonnegative solution of a homogeneous equation with a biharmonic principal part
p. 1058-1059
Existence of tangential $O$-curves of an algebroid system of differential equations in some degenerate cases
p. 1059-1062
An initial-value problem for some singular hyperbolic equations and WKB-estimates for its solutions
p. 1062-1064
A new case of integrability by quadratures of the general Riccati equation
On the bifurcation of an invariant torus $\mathbf T^m\to\mathbf T^{m+1}$
p. 1066-1069
On the number of polynomial solutions of various degrees of algebraic differential equations
p. 1069-1071
Asymptotic behavior of solutions of a nonlinear second-order differential equation in a special case
p. 1071-1072
The disappearance of the reducibility property in systems with quasiperiodic coefficients
p. 1073-1075
The regularized trace of an operator with a weak singularity
p. 1075-1078
Two-mode bifurcation of solutions of the von K\'arm\'an equation
p. 1078-1081
Optimality of singular controls in systems with delay that are controllable by means of initial functions
p. 1081-1084
О~семинаре по качественной теории дифференциальных уравнений в~Московском университете
p. 1085-1096