On a wreath product embedding and idempotent pure congruences on inverse semigroups.
On a wreath product embedding for regular semigroups.
On algebraic closure and amalgamation of semigroups.
On algebraically compact semigroup rings.
On almost semigroups
On an application of the work of D.E. Knuth to semigroups.
On anticommutative semirings.
On anti-inverse semigroups.
On autogenerating systems
On automorphisms of transformation semigroups.
On bands, free bands and identities.
On bands in which every finitely generated subband is an endomorphic image.
On bases and maximal ideals in semigroups
On bases of completely simple semigroups identities.
On basis of identities of Brandt semigroups.
On binomial set-theoretic complete intersections in characteristic p.
On Bruck-Reilly extensions.
On cardinalities of row spaces of Boolean matrices.
On Cayley graphs of completely 0-simple semigroups
We give necessary and sufficient conditions for various vertex-transitivity of Cayley graphs of the class of completely 0-simple semigroups and its several subclasses. Moreover, the question when the Cayley graphs of completely 0-simple semigroups are undirected is considered.
On centroids of generalized regular rings