Geodesic

Tome 47 (1990) no. 1

Sommaire

The problem of gray boxes
p. 3-14
Certain extremal problem for nonnegative trigonometric polynomials
p. 15-28
Solutions of boundary-value problems for an elliptic equation degenerate on a~part of the boundary
p. 29-38
A~variational description of the spectra of totally positive matrices, and extremal problems of approximation theory
p. 39-46
Basis systems on the torus generated by finite-zone integration of the Korteweg--de Vries equation
p. 47-61
Synthesis in problems of optimal control containing trajectories with participating switchings and singular trajectories of the second order
p. 62-73
Instantaneous compactification of supports of solutions to semilinear parabolic equations and systems thereof
p. 74-80
Minimization of a~convex functional on a~class of sets in a~measure space
p. 81-91
Solvability of finite coatomic groups
p. 92-97
Novikov numbers
p. 98-104
Multiplicative functions of locally finite partially ordered sets. Multiplicativity criteria
p. 105-114
Perturbations of solutions of the Signorini problem for a~second-order scalar equation
p. 115-126
An example in connection with the Jacobian conjecture
p. 127-136
A~minimal permutation representation of the finite simple Janko group~$J_4$
p. 137-146
Smooth real finite-zonal solutions of sine-Gordon equations
p. 147-156
Integration of Bogoyavlenskii chains
p. 157-160
Harmonic mappings of modules
p. 161-163
Effectivization of the Koksma theorem
p. 163-166
The structure of sets of directions of continuity of product measures and of series of such in a~Hilbert space
p. 166-168
Quasilinear parabolic equations that admit infinite-dimensional Lie--B\"acklund algebras
p. 168-170