ACTA SCIENTIARUM MATHEMATICARUM (Szeged)

The finitely based varieties of graph algebras

K. A. Baker, G. F. McNulty, H. Werner

Horn sentences in submodule lattices

G. Czédli

An irregular Horn sentence in submodule lattices

G. Czédli, G. Hutchinson

Quasi-identities, Mal'cev conditions and congruence regularity

B. A. Davey, K. R. Miles, V. J. Schumann

A decomposition theorem for modular lattices containing an $n$-diamond

R. Freese

The lattice variety $D\circ D$

G. Grätzer, D. Kelly

Lattices whose congruence lattice is relative Stone

M. Haviar, T. Katriňák

Frames of permuting equivalences

C. Herrmann

The diagram invariant problem for planar lattices

R. Jégou, R. Nowakowski, I. Rival

Representation of 2-distributive modular lattices of finite length

B. Jónsson, J. B. Nation

Congruence relations and direct decompositions of ordered sets

M. Kolibiar

On circuits of atoms in atomistic lattices

S. Maeda

A note on radical and semisimple classes of topological rings

L. Márki, R. Mlitz, R. Wiegandt

Distributive congruence lattices of finite algebras

P. P. Pálfy

A partial ordering for the chief factors of a solvable group

G. Pazderski

Vypuklye kombinatsii beskonechnykh matrits otobrazhenii

L. I. Polotskii, M. V. Sapir, L. A. Skornyakov

Effective constructions of cutsets for finite and infinite ordered sets

I. Rival, N. Zaguia

Homomorphism of distributive lattices as restriction of congruences

E. T. Schmidt

A characterization of semimodularity in lattices of finite length

M. Stern

Triply transitive algebras

L. Szabó

A generalization of McAlister's $P$-theorem for $E$-unitary regular semigroups

M. B. Szendrei

Idempotent algebras with restrictions on subalgebras

Á. Szendrei