1966-1967/28/2

On operational calculus of germs and the Laplace transform of germs

On a condition for almost everywhere Bochner-Riesz summability of multiple Fourier series

Некоторые слабые методы суммирования

Estimates for eigenfunctions

Über die Methode des "schnellsten Falles" für das Minimumproblem von Funktionalen in Hilbertschen Räumen

On simultaneous extension of infinitely differentiable functions

The direct sum of Banach spaces with respect to a basis

Schauder bases in compatible topologies