On a representation of semigroups by products of algebras and relations
On a technique for representing semigroups as endomorphism semigroups of graphs with given property.
On characters and characteristic polynomials of transformation semigroups
On completely 0-simple semigroups.
On factor S-sets of monoids modulo submonoids.
On general linear semigroups.
On homological classification of pomonoids by regular weak injectivity properties of S-posets
If S is a partially ordered monoid then a right S-poset is a poset A on which S acts from the right in such a way that the action is compatible both with the order of S and A. By regular weak injectivity properties we mean injectivity properties with respect to all regular monomorphisms (not all monomorphisms) from different types of right ideals of S to S. We give an alternative description of such properties which uses systems of equations. Using these properties we prove several so-called homological...
On p -semisimple S-sets.
On p-irreducible S-subsets of an S-set.
On representation of commutative semigroups.
On representations of monoids as monoids of polynomials
On representations of tolerance ordered commutative semigroups
On semigroups of left inner type.
On semisimple bands.
On special Rees matrix semigroups over semigroups
We study the right regular representation of special Rees matrix semigroups over semigroups, and discuss their embedding in idempotent-free left simple semigroups.
On strongly -cyclic acts
By a regular act we mean an act such that all its cyclic subacts are projective. In this paper we introduce strong -cyclic property of acts over monoids which is an extension of regularity and give a classification of monoids by this property of their right (Rees factor) acts.
On the algebraic characterization of systems of partial mappings
On the kernel of the wreath product of completely simple semigroups.
On the monoids of homomorphisms of semigroups with unity
On the semigroup of closure operations.