Geodesic

Volume 4 (1968) no. 3

Sommaire

Convergence and divergence systems
p. 253-260
Some estimates of the rate of summability of orthogonal series by linear means
p. 261-268
A generalization of a theorem of M.~Riesz to the case of functions of several variables
p. 269-280
On a property of $N$-functions
p. 281-290
Approximation of differentiable functions by partial sums of their Fourier series
p. 291-300
Sufficient conditions that the minimum and maximum of partial differential operators should coincide and that their spectra should be discrete
p. 301-312
The convergence of a new iteration process for the solution of nonlinear functional equations in Banach space
p. 313-322
Nonsymmetrical distance between probability distributions, entropy and the theorem of Pythagoras
p. 323-332
On zeta functions of fields of algebraic numbers
p. 333-339
On a certain class of transcendental numbers
p. 341-348
On subgroups of Demushkin groups
p. 349-354
Isomorphisms of free decompositions of $\Gamma$-operator groups with a regular group of operators~$\Gamma$
p. 355-360
On the existence of stably nilpotent subgroups in locally nilpotent groups
p. 361-368
On minimal universal trees
p. 371-380