1972/41/2

Products and convolutions of vector valued set functions

Differentiation of trigonometric series

On certain linear combinations of partial sums of Fourier series

On weak and Schauder decompositions

A new definition of nuclear systems with applications to bases in nuclear spaces

An embedding theorem for commutative ${\displaystyle B_0}$-algebras

An application of interpolation theory to Fourier series

Some remarks on a theorem of S.M. Lozinski concerning linear process of approximation of periodic functions

Fractional powers of operators and Bessel potentials on Hilbert space

Some remarks on the Gurarij space