Geodesic

Volume 13 (1977) no. 12

Sommaire

Invertibility conditions for a second order differential operator
p. 2115-2123
An optimal control problem in Hilbert space
p. 2124-2134
The structure of the Poincar\'e disc of a first order homogeneous differential equation
p. 2135-2140
On the question of the oscillation of the solutions of a second order differential equation with an ``integrally small'' coefficient
p. 2141-2148
The first boundary value problem for a certain fourth order system
p. 2149-2157
The solvability of linear differential equations in weighted spaces of entire functions
p. 2158-2167
Estimation of the states of controllable systems under conditions of indeterminacy
p. 2168-2179
A H\"older condition for Bellman's function
p. 2180-2187
The asymptotic properties of the solutions of two-dimensional differential systems
p. 2188-2198
On the question of the controllability of linear systems in locally convex spaces
p. 2199-2206
Semi-dynamical systems on the line
p. 2207-2212
$(U,\kappa ,\alpha )$-monotone equations
p. 2213-2224
On the question of the stability of the solutions of linear differential equations with retarded argument
p. 2225-2233
The Goursat problem for a second order hyperbolic equation with a singularity in the coefficient
p. 2234-2245
Method of penalty functions and optimality conditions for the generalized solutions for an optimal control problem with partial derivatives
p. 2246-2255
Stabilization of the solution of the Cauchy problem for a higher order parabolic equation
p. 2256-2264
The inverse problem for higher order elliptic equations
p. 2265-2271
Syzygies between the affine invariants of a system with quadratic right hand sides
p. 2272-2275
Optimal control of processes that are described by integro-differential equations
p. 2276-2279
Boris Pavlovi{\v{c}} Demidovi{\v{c}}
p. 2280-2283
Isaak Samo{\v\i}lovi{\v{c}} Kukles
p. 2284-2287
Letter to the editors: ``A criterion for discreteness of the spectrum for a degenerate operator, and certain imbedding theorems'' (Differencial'nye Uravnenija \textbf{13} (1977), no.~1, 111--120)