ACTA SCIENTIARUM MATHEMATICARUM (Szeged)

On Jónsson modules over a commutative ring

R. Gilmer, W. Heinzer

Simple semimodules over commutative semirings

J. Ježek, T. Kepka

Mal'cev conditions for regular and weakly regular subalgebras of the square

J. Duda

Tolerance trivial algebras and varieties

I. Chajda

On classes of ordered algebras and quasiorder distributivity

G. Czédli, A. Lenkehegyi

Toleranzrelationen als Galoisverbindungen

H. J. Bandelt

$E$-unitary covers and varieties of inverse semigroups

M. Petrich, N. R. Reilly

Separation of the radical in ring varieties

M. V. Volkov

Disjoint sublattices of lattices

M. E. Adams, J. Sichler

Schwach distributive Verbände. II.

A. P. Huhn

$n$-Distributivgesetze

H. Gerstmann

On lightly compact spaces

O. Özer

A note on multifunctions

O. Özer

On variation spaces of harmonic maps into spheres

A. Lee, G. Tóth

On partial asymptotic stability and instability. II.

L. Hatvani

On the stability and convergence of solutions of differential equations by Liapunov's direct method

J. Terjéki

Meromorphic functions of operators

T. T. Trent

An exact description of Lorentz spaces

L. E. Persson

Compact and Hilbert--Schmidt composition operators on Hardy spaces of the upper half-plane

S. D. Sharma

On the absolute Riesz summability of orthogonal series

L. Leindler

Approximation in $L^1$ by Kantorovich polynomials

V. Totik

On the equiconvergence of different kinds of partial sums of orthogonal series

V. Totik

$L^r$ inequalities for Walsh series

W. R. Wade

Ergodic sequences of integers

J. R. Blum

Weighted translation semi-groups with operator weights

M. Embry-Wardrop

On the polar decomposition of an operator

T. Furuta

Spectral properties of elementary operators

L. A. Fialkow

Characterizations and invariant subspaces of composition operators

D. K. Gupta, B. S. Komal

Note on operators of class $C_0(1)$

S. Rosenoer

On ranges of adjoint operators in Hilbert space

Z. Sebestyén

Restrictions of positive operators

Z. Sebestyén

A note on a paper of S. Watanabe

Hr. Bojadziev

Conditions for hermiticity and for existence of an equivalent $C^*$-norm

Z. Magyar

On zeros of analytic multivalued functions

B. Aupetit, J. Zemánek

Infinite-dimensional Jordan models and Smith McMillan forms. II.

A. E. Frazho

$(O,A)$-semigroups on $L_p(G)$ commuting with translations are $(C_0)$

A. Olubummo

Ergodic theorems in von Neumann algebras

D. Petz

Contractions and unilateral shifts

M. Uchiyama

On the equiconvergence of expansions by Riesz bases formed by eigenfunctions of the Schrödinger operator

I. Joó, V. Komornik

Two remarks on pointwise periodic topological mappings

I. Joó, L. L. Stachó

A general ordering and fixed-point principle in complete metric space

S. Dancs, M. Hegedűs, P. Medvegyev