1970/34/2

Convergence and almost convergence of certain sequences of positive linear operators

Continuity of seminorms and linear mappings on a space with Schauder basis

Les nombres de Pisot et l'analyse harmonique

Sur l'intégration directe d'équations d'évolution

A remark on Berezanskiĭ version on spectral theorem

Blaschke products for finite Riemann surfaces

Über die Limitierbarkeit unbeschränkter Doppelfolgen

Spektraleigenschaften eindimensionaler Differentialoperatoren höherer Ordnung

Determinant system for composite of generalized Fredholm operators

On the spectral radius in group algebras

Restrictions and extensions of Fourier multipliers