Tight semigroups.
Bogdanović, Stojan, Ćirić, Miroslav (1991)
Publications de l'Institut Mathématique. Nouvelle Série
Similarity:
Bogdanović, Stojan, Ćirić, Miroslav (1991)
Publications de l'Institut Mathématique. Nouvelle Série
Similarity:
Kobayashi, Shigeru, Shimada, Haruki (2001)
Applied Mathematics E-Notes [electronic only]
Similarity:
Blanka Kolibiarová (1967)
Matematický časopis
Similarity:
Jaroslav Ježek, Tomáš Kepka (2006)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
Yong He, Fang Shao, Shi-qun Li, Wei Gao (2006)
Czechoslovak Mathematical Journal
Similarity:
In this paper the equivalence on a semigroup in terms of a set of idempotents in is defined. A semigroup is called a -liberal semigroup with as the set of projections and denoted by if every -class in it contains an element in . A class of -liberal semigroups is characterized and some special cases are considered.