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Your search keyword '"Hengwu Zheng"' showing total 2 results
Start Over Author "Hengwu Zheng" Topic regular semigroup
2 results on '"Hengwu Zheng"'

1. Tolerance relations on eventually regular semigroups

Author

Hengwu Zheng

Subjects
Algebra, Algebra and Number Theory, Weakly compatible, Mathematics::Operator Algebras, Algebraic structure, Semigroup, Tolerance relation, Special classes of semigroups, Algebra over a field, Element (category theory), Regular semigroup, Mathematics
Abstract

A semigroup is called eventually regular if a power of each element is regular. Regular and group-bound semigroups are each eventually regular. A tolerance relation on an eventually regular semigroup is introduced, and Lallement's result for regular semigroups is generalized to eventually regular semigroups. Weakly compatible tolerances on semigroups are studied.

Published
1996

2. Strong $$\mathcal{P}$$ -Congruences on $$\mathcal{P}$$ -Regular semigroupssemigroups

Author

Hengwu Zheng

Subjects
Discrete mathematics, Pure mathematics, Maximal subgroup, Inverse semigroup, Algebra and Number Theory, Equivalence relation, Congruence relation, Algebra over a field, Regular semigroup, Mathematics
Abstract

In this paper we describe the strong\(\mathcal{P}\)-congruences on\(\mathcal{P}\)-regular semigroups in terms of their characteristic kernels and characteristic traces.

Published
1995

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