Geodesic

Tome 48 (1990) no. 3

Sommaire

Carath\'eodory theorem for matrix-valued functions and the maximal jump of spectral functions in extension problems
p. 3-11
Surfaces with maximal curvature of the Grassmann image
p. 12-19
System, similar to a~normal form
p. 20-31
Breakdown of uniqueness of solutions of the Dirichlet problem for elliptic systems in a~disc
p. 32-36
Approximations of differentiable functions of several variables
p. 37-44
Behavior of the sum of a~series of exponentials near the boundary of the domain of regularity
p. 45-53
Representation of the approximational error term and sharp estimates for some local splines
p. 54-65
Domination-complete graphs
p. 66-69
Remarks on the superposition measurability of a~multivalued function
p. 70-72
Categorical properties of the set of nonuniqueness points in the space~$L_\varphi$
p. 73-80
Inverse problem of the determination of a~nonlinear dependence of the electric current on the electric field intensity
p. 81-90
Exact solutions of some approximation problems by means of positive operators
p. 91-99
Several new results on quasicrystallographic groups in Novikov sense
p. 100-107
Constructive formalization of the Tennenbaum theorem and its applications
p. 108-118
A~propositional logic of Boolean recursive programs in which predicate variables appear in conditions
p. 119-127
The origin of vortices in an ideal fluid
p. 128-133
A~quasiinvariant smooth measure on the diffeomorphism group of a~domain
p. 134-142
Finite-gap solutions of the equation of cylindrical-symmetric Heisenberg magnetics
p. 143-145
Criteria for $M$-ideals of compact operators
p. 145-147
Holomorphicity of $CR$-mappings into a~space of large dimension
p. 147-149
Decomposition of the regular representation of a~finite group with two generators
p. 149-151
Some theorems of Phragm\'en--Lindel\"of type for solutions of semilinear parabolic inequalities
p. 151-153
Contact symmetries and conservation laws of some equations in gas dynamics
p. 154-156