Generalized $F$-semigroups

E. Giraldes; P. Marques-Smith; Heinz Mitsch

Displaying similar documents to “Generalized $F$ -semigroups”

On left $C$ - $𝒰$ -liberal semigroups

Yong He, Fang Shao, Shi-qun Li, Wei Gao (2006)

Czechoslovak Mathematical Journal

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In this paper the equivalence ${\tilde{𝒬}}^{U}$ on a semigroup $S$ in terms of a set $U$ of idempotents in $S$ is defined. A semigroup $S$ is called a $𝒰$ -liberal semigroup with $U$ as the set of projections and denoted by $S (U)$ if every ${\tilde{𝒬}}^{U}$ -class in it contains an element in $U$ . A class of $𝒰$ -liberal semigroups is characterized and some special cases are considered.

A class of quasi-adequate transformation semigroups.

Umar, Abdullahi (1994)

Portugaliae Mathematica

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Divisibility orders on semigroups. II.

Mitsch, H. (2004)

Mathematica Pannonica

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Subtraction semigroups

Bohdan Zelinka (1995)

Mathematica Bohemica

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A subtraction semigroup is a semigroup $(A, ., -)$ with a further operation " $-$ " added, called subtraction and satisfying certain axioms. The paper concerns a problem by B. M. Schein concerning the structure of multiplication in a subtraction semigroup.

Displaying similar documents to “Generalized F -semigroups”

On left C - 𝒰 -liberal semigroups

A class of quasi-adequate transformation semigroups.

Divisibility orders on semigroups. II.

Subtraction semigroups

Displaying similar documents to “Generalized $F$ -semigroups”

On left $C$ - $𝒰$ -liberal semigroups