Representations of semigroups of idempotents
Semigroups for which every totally irreducible -system is injective
Simple paramedial groupoids
Simplicity for a class of convolution algebras.
Simultaneous representations in discrete structures
Some remarks on T-semigroups
Some results on generalized inverse semigroups.
Sous-monoïdes et automates
Spaces which admit negative powers and all roots (Preliminary communication)
Stationary subsets, stabilizers and transitive representations of semigroups [Book]
Structure of partially ordered cyclic semigroups
This paper recalls some properties of a cyclic semigroup and examines cyclic subsemigroups in a finite ordered semigroup. We prove that a partially ordered cyclic semigroup has a spiral structure which leads to a separation of three classes of such semigroups. The cardinality of the order relation is also estimated. Some results concern semigroups with a lattice order.
Sur les demi-groupes réticulés et les O-demi-groupes.
The core congruence on a monoid.
The injective hull of S-sets, S a semilattice of groups.
The multiplicative behavior of H.
The primitivity of semigroup algebras of free products.
The pseudovariety of semigroups of triangular matrices over a finite field
We show that semigroups representable by triangular matrices over a fixed finite field form a decidable pseudovariety and provide a finite pseudoidentity basis for it.
The pseudovariety of semigroups of triangular matrices over a finite field
We show that semigroups representable by triangular matrices over a fixed finite field form a decidable pseudovariety and provide a finite pseudoidentity basis for it.
The semigroup of finite complexes of a group
Two results on real continuous bicharacters.