On a conjecture of the semigroup of fully indecomposable relations
On a relationship between monoids and monounary algebras
On a type of matrix semigroup.
On autogenerating systems
On automorphisms of transformation semigroups.
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 characters and characteristic polynomials of transformation semigroups
On compact regular semigroups of complex matrices.
On congruences of ...x-normal semigroups.
On extending endomorphisms to automorphisms.
On extensions onto sub-semigroups of semigroups with two generators.
On finite J-trivial monoids.
On finitely generated monoids of matrices with entries in
On full transformation semigroups.
On irreducible matrix semigroups.
On Konieczny's conjecture of Boolean matrices.
On L-Semi-Groups.
On maximal compact subsemigroups of the endomorphism semigroup of an n-dimensional complex vector space.
On maximal subsemigroups of Baer-Levi semigroups.