ACTA SCIENTIARUM MATHEMATICARUM (Szeged)

Reflexive and hyper-reflexive operators of class $C_0$

H. Bercovici, C. Foiaş, B. Sz.-Nagy

On the commutant of $C_{11}$-contractions

L. Kérchy

Beitrag zur Theorie der straken Summierbarkeit mit einer Anwendung auf Orthonormalreihen

K. Endl

The boundedness of closed linear maps in $C^*$-algebras

S. Watanabe

On the Korovkin closure

V. Komornik

On the convergence of solutions of functional differential equations

T. Krisztin

Imbedding theorems and strong approximation

L. Leindler

A Rees matrix semigroup over a semigroup and its maximal right quotient semigroup

A. M. Lopez Jr.

Models for operators with bounded characteristic function

B. W. McEnnis

Derivations on $l$-semigroups and formal languages

H. Mitsch

Korrektur und Ergänzung zu meiner Arbeit

R. Quinkert

A characterization of compactness

Z. M. Rakowski

$C_p$-minimal positive approximants

D. D. Rogers, J. D. Ward

Compact and Hilbert-Schmidt composition operators on weighted sequence spaces

D. K. Gupta, R. K. Singh, A. Kumar

On the converse of the Fuglede-Putnam theorem

K. Takahashi

Beitrag zur Konvergenz der Orthogonalreihen

K. Tandori

On the radical classes determined by regularities

T. T. Hue, F. Szász

The hyperbolic M. Riesz theorem

S. Yamashita

A maximum principle for interpolation in $H^\infty$

N. J. Young

The ideal lattice of a distributive lattice with $0$ is the congruence lattice of a lattice

E. T. Schmidt

A parameter for subdirectly irreducible modular lattices with four generators

C. Herrmann

Analytic matrix functions related to operators in the space $\Pi_x$

M. G. Krein, H. Langer

Carleman and Korotkov operators on Banach spaces

N. E. Gretsky, J. J. Uhl Jr.

On center-valued states of von Neumann algebras

D. Petz