Geodesic

Tome 6 (1970) no. 3

Sommaire

The reducibility of multifrequency systems of differential equations with summable series
p. 403-411
Optimal realization of a given process by a discontinuous exit signal of a transmission system
p. 412-419
The stabilization of linear systems with stochastic properties
p. 420-424
On the theory of Painlevé's equations
p. 425-430
Conditional stability on a finite interval of time
p. 431-434
Certain boundary value problems with conditions at infinity
p. 435-442
Almost differentiability, with respect to parameters, of the solutions of a certain differential equation
p. 443-453
Sufficient conditions for the absence of integral cycles for dynamical systems on manifolds
p. 454-466
Behavior of solutions in the large of a certain automatic control system
p. 467-474
An application of Galerkin's method to the integration of systems of nonlinear ordinary equations
p. 475-482
Stokes multipliers for various systems of linear differential equations. I
p. 483-496
The expansion in principal functions of a nonselfadjoint differential operator of order $2n$ with spectral singularities
p. 497-512
Selfadjointness of operators that are generated by the Schrödinger equation and by inhomogeneous boundary conditions on a part of the boundary
p. 513-524
The representability of boundary value problems in the form of systems of section-problems
p. 525-530
A solution of the stationary problem of the theory of heat conductivity for wedge-shaped bodies with a boundary condition of the third kind
p. 531-537
The summability of Fourier series for functions from $L_p$ in terms of eigenfunctions
p. 538-547
A certain method of constructing the solution of an integral equation of the first kind
p. 548-551
The relative distribution of the solutions of two stationary linear differential systems
p. 552-554
On the generalization of a certain theorem of N. N. Bogoljubov on averaging
p. 555-557
Parametric functions of several matrices and of a countable set of matrices
p. 558-560
Theorems on the estimation of the invariant $A_1$ of the characteristic equation for an $n$th order linear homogeneous
p. 561-564
A solution of the stability problem for a system of linear differential equations with $\pi $-periodic coefficients by means of the $\pi /4$-characteristic equation
p. 565-568
The method of differentiation with respect to a parameter as applied to the problem of determining periodic solutions of differential equations
p. 569-570