Characterisations of extremly amenable semigroups.
Characterizations of certain general and reproductive solutions of arbitrary equations
Characterizations of dual semigroups
Characterizing intraregular semigroups by intuitionistic fuzzy sets.
In this paper, we give some theorems which characterize the intraregular semigroups in terms of intuitionistic fuzzy left, right, and biideals.
Characters and the structure of finite semigroups.
Chordal intersection graphs of bands
Circulant Boolean relation matrices
Circulant Boolean relation matrices
Classes de semigroups immersibles dans des groupes.
...-classes in ....-unipotent Semigroups.
Classes of Regularity in Semigroups
Clifford congruences on generalized quasi-orthodox GV-semigroups
A semigroup S is said to be completely π-regular if for any a ∈ S there exists a positive integer n such that aⁿ is completely regular. A completely π-regular semigroup S is said to be a GV-semigroup if all the regular elements of S are completely regular. The present paper is devoted to the study of generalized quasi-orthodox GV-semigroups and least Clifford congruences on them.
Clifford semifields
It is well known that a semigroup S is a Clifford semigroup if and only if S is a strong semilattice of groups. We have recently extended this important result from semigroups to semirings by showing that a semiring S is a Clifford semiring if and only if S is a strong distributive lattice of skew-rings. In this paper, we introduce the notions of Clifford semidomain and Clifford semifield. Some structure theorems for these semirings are obtained.
Closure operations and semigroups of quotients
Codomain of the tensor product of semigroups
Combinatorial results for semigroups of order-decreasing partial transformations.
Commutative monoids all of whose principal ideals are projective.
Commutative primary semigroups
Commutative semigroups which are embeddable into epigroups.
Commutative semigroups whose proper subsemigroups are projective.