Geodesic

Tome 53 (1993) no. 2

Sommaire

On exact constants in inequalities for norms of powers of linear operators in a~finite-dimensional
p. 3-14
Annihilator characterizations of Boolean rings and Boolean lattices
p. 15-24
Polynomial decomposition of Boolean functions
p. 25-29
On a~problem of Zalcman and its generalizations
p. 30-36
On the degree of rational functions of best approximation in $L_p(\mathbb R^m)$
p. 37-45
On a~group of intermediate growth that acts on a~line by homeomorphisms
p. 46-63
The approximation of analytic functions in some function spaces and the rational approximation of functions in Hardy classes
p. 64-70
On some properties of the formation of quasinilpotent groups
p. 71-77
On a~theorem of Hardy and Littlewood
p. 78-83
On a~theorem of Schauffler
p. 84-93
An optimal interpolation theorem for weighted quasi-Banach spaces~$l_p$ and for operators in Neumann--Schatten classes in Hilbert couples
p. 94-99
On the asymptotic behavior of the solution of the Neumann problem in domains with thin cross connectors
p. 100-109
On the simultaneous extension of the topology and pseudonorm of a~monoid to its semigroup ring
p. 110-113
Interpolation rational operators of Fej\'er and de la Vall\'ee-Poussin type
p. 114-121
A~generalization of a~theorem of Lie, and Jordan tops
p. 122-125
Quaternion algebras over commutative rings
p. 126-131
Pseudocharacters on semidirect products of semigroups
p. 132-139
The Poincar\'e--Bendixson theorem and compact families of solution spaces of ordinary differential equations
p. 140-144
Lower bounds for the widths of classes of periodic functions with a~bounded fractional derivative
p. 145-151
On the property of being a basis, for the eigenfunctions of a~problem on antiplanar oscillations of a~cylinder with external friction
p. 152-167
Uniform approximation of a~solution of an inverse problem by the quasireversibility method
p. 168-174
The deformation method for studying infinite-dimensional optimization problems
p. 175-176