ACTA SCIENTIARUM MATHEMATICARUM (Szeged)

László Kalmár (1905--1976)

Editors

Diagonalization of matrices over $H^\infty$

B. Sz.-Nagy

On differentiation

L. W. Cohen

Lebesgue-type decomposition of positive operators

T. Ando

Strongly reductive operators are normal

C. Apostol, C. Foiaş, D. Voiculescu

On thin operators relative to an ideal in a von Neumann algebra

B. A. Barnes

Jordan model for some operators

H. Bercovici

On intertwining dilations

Z. Ceauşescu

Universal quasinilpotent operators

D. A. Herrero

A remark on convergence systems in measure

I. Joó

A remark on convergence of orthogonal series

I. Joó, K. Tandori

Commutants and bicommutants of operators of class $C_0$

B. Sz.-Nagy, C. Foiaş

On the strong approximation of Fourier series

L. Leindler

Probability inequalities of exponential type and laws of the iterated logarithm

F. Móricz

Spectral mapping theorems for semigroups of operators

B. Nagy

Note on an embedding theorem

J. Németh

Derivations and translations on lattices

J. Nieminen

On the volume function of parallel sets

L. L. Stachó

Decomposable elements and ideals in semigroups

G. Szász

Unitary subsemigroups in commutative semigroups

G. Szász

Sur la connexion naturelle à torsion nulle

J. Szenthe

On some recurrence equations in a Banach algebra

L. Takács

On a property of strictly logarithmic concave functions

V. A. Tomilenko

Similarity invriants for a class of nilpotent operators

L. R. Williams