Geodesic

Volume 13 (1977) no. 6

Sommaire

On the question of the isochronism of the center of two-dimensional analytic differential systems
p. 971-980
Formal and analytic equivalence of real systems of differential equations
p. 981-991
Asymptotic solution of differential equations in a Hilbert space
p. 992-995
The periodic boundary value problem for a two-dimensional differential system
p. 996-1007
Asymptotic solution of a weakly nonlinear system
p. 1008-1019
Some properties of Ljapunov functions
p. 1020-1025
The boundedness of the solutions of a certain multidimensional system in the critical case of one zero root. I
p. 1026-1037
Construction of Ljapunov functions for systems of linear differential equations
p. 1038-1046
A geometric treatment of the oscillatory properties of third order linear differential equations
p. 1047-1052
The combination of control and observation processes in problems of game deviation of motion
p. 1053-1060
Conditions for the occurrence of the problem of center and focus
p. 1061-1069
Conditions for the existence of solutions of multivalued differential equations
p. 1070-1078
Criteria for the stability of sets with respect to a nonautonomous differential system
p. 1079-1090
The minimality of sets and the Poisson stability of motions in homomorphic dynamical systems
p. 1091-1097
On the theory of boundary value problems for equations of mixed type in space
p. 1098-1105
The method of monotonicity in the theory of nonlinear singular integral and integro-differential equations
p. 1106-1112
A quadratic functional for the heat equation
p. 1113-1123
The probability of the stability of systems of differential equations with constant coefficients that depend on a random parameter
p. 1124-1125
Moving singularities of a certain class of systems of third order differential equations
p. 1126-1128
\"Uber die auf der Verbindungsstrecke zwischen unbeweglichen singul\"aren Punkten holomorphen L\"osungen einer nichtlinearen Differentialgleichung
p. 1129-1130
Conditions for the existence of the maximal number of polynomial solutions of algebraic differential equations
p. 1131-1134
Systems with a piecewise constant matrix of coefficients
p. 1135-1137
Differential systems with non-negative normed solutions
p. 1138-1140
Zur Theorie der vollen Steuerbarkeit von Systemen mit Retardierung nach dem Zustand
The normal form of an analytic system of differential equations in the case of a structurally unstable focus
p. 1142-1144
The existence of saddle periodic solutions of Duffing's equation without dissipation
p. 1145-1148
Владимир Михайлович Шалов (некролог)
p. 1149-1153