Cancellative and archimedean Ideal-extensions by commutative semigroups.
CANCELLATIVE SEMIGROUPS WITH NON-EMPTY CENTER.
Cancellative simple semigroups and groups.
Cancellative subsemigroups of archimedean semigroups.
Categorical semigroups.
Centralizers in symmetric inverse semigroups: Structure and order.
Certain fundamental congruences on the tensor product of commutative inverse semigroups
Certain partial orders on semigroups
Relations introduced by Conrad, Drazin, Hartwig, Mitsch and Nambooripad are discussed on general, regular, completely semisimple and completely regular semigroups. Special properties of these relations as well as possible coincidence of some of them are investigated in some detail. The properties considered are mainly those of being a partial order or compatibility with multiplication. Coincidences of some of these relations are studied mainly on regular and completely regular semigroups.
Certain subsemigroups of orthodox semigroups.
Chain semigroups
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 of Regularity in Semigroups