Les F-Réguliers à gauche (left F-Regular semigroups).
Matrix congruences on orthodox semigroups.
Maximale ...-und ...1-Kategorien.
Maximizing a congruence with respect to its partition of idempotents.
Minimal conditions on Clifford semigroup congruences.
Minimal group congruences need not be smallest.
Modularity and distributivity of tolerance lattices of commutative separative semigroups
Modularity and distributivity of tolerance lattices of commutative inverse semigroups
Moment problems on subsemigroups of N ... and Zk.
Monomorphisms of semigroups of B-rigid local dendrites.
Monomorphisms of transformation semigroups.
Mots infinis de Fibonacci et morphismes itérés
Non-modular congruence lattices of Rees matrix semigroups
Note on self-injective non-singular semigroups.
Note on the congruence lattice of a commutative separative semigroup
Numerical isotonies of preordered semigroups through the concept of a scale.
On a probabilistic problem on finite semigroups
We deal with the following problem: how does the structure of a finite semigroup depend on the probability that two elements selected at random from , with replacement, define the same inner right translation of . We solve a subcase of this problem. As the main result of the paper, we show how to construct not necessarily finite medial semigroups in which the index of the kernel of the right regular representation equals two.
On a problem of B. Zelinka
On a problem of B. Zelinka, II
On a problem of Pastijn and Petrich.