Geodesic

Volume 50 (1991) no. 4

Sommaire

Some applications of the theory of operators in Krein spaces to the solvability of nonlinear Hamiltonian systems
p. 3-9
Properties of quadratic maps in a Banach space
p. 10-20
Partial sums of a trigonometric series with convex coefficients
p. 21-27
The~Helly intersection theorem
p. 28-32
Structure of the ad\`ele group of a product of algebraic groups
p. 33-37
Stabilization of energy for a wave equation with memory
p. 38-46
Behavior of the sum of a Dirichlet series having a prescribed growth
p. 47-56
Approximation of a subharmonic function of infinite order by the logarithm of the modulus of an entire function
p. 57-60
The semilattice of computable families of recursively enumerable sets
p. 61-66
Automatic continuity of operators in vector lattices
p. 67-74
Integral equations for the problem of stationary waves produced by a floating body
p. 75-83
Viable parametrization of continuous many-valued mappings
p. 84-87
Geometry of the spectrum of the one-dimensional Schr\"odinger equation with a periodic complex-valued potential
p. 88-95
Extreme subsets of operator intervals
p. 96-101
Number of small solutions of a homogeneous linear congruence
p. 102-107
Symmetric representations of algebras with involution
p. 108-113
Improvement of an inequality of Hardy containing an estimate of the size of an intermediate derivative of a function
p. 114-122
Preservation of invariant manifolds of Hamiltonian systems in the presence of a perturbation
p. 123-131
Analytic solutions of the functional equation $(xy)x=x(yx)$
p. 132-140
Minimum principle for bounded holomorphic functions in many-dimensional domains
p. 141-149
Smoothness and limiting properties of solutions of a second-order parabolic equation
p. 150-152
Nonisomorphic full automorphism groups of nonseparable measure spaces
p. 152-154
Behavior of nearly homothetic mappings
p. 154-156