Results 91 to 100 of about 1,009,048 (159)
Semilattice of bisimple regular semigroups [PDF]
Proceedings of the American Mathematical Society, 1971 The main purpose of this paper is to show that a regular semigroup S S is a semilattice of bisimple semigroups if and only if it is a band of bisimple semigroups and that this holds if and only if D \mathcal {D} is a congruence on S S . It is also shown that a quasiregular semigroup
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DIVISIBILITY TESTS FOR SMARANDACHE SEMIGROUPS [PDF]
, 2002 Two Divisibility Tests for Smarandache semigroups are given. Further, the notion of divisibility of elements in a semigroup is applied to characterize the Smarandache semigroups.
Rao, Chandra Sekhar
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A further study on ordered regular equivalence relations in ordered semihypergroups
Open Mathematics, 2018 In this paper, we study the ordered regular equivalence relations on ordered semihypergroups in detail. To begin with, we introduce the concept of weak pseudoorders on an ordered semihypergroup, and investigate several related properties.
Tang Jian +3 more
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Semigroups with inverse skeletons and Zappa-Sz'{e}p products [PDF]
Categories and General Algebraic Structures with Applications, 2013 The aim of this paper is to study semigroups possessing $E$-regular elements, where an element $a$ of a semigroup $S$ is {em $E$-regular} if $a$ has an inverse $a^circ$ such that $aa^circ,a^circ a$ lie in $ Esubseteq E(S)$. Where $S$ possesses `enough'
Victoria Gould, Rida-e- Zenab
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Semigroups Characterized by Their Generalized Fuzzy Ideals
Journal of Mathematics, 2013 We have characterized right weakly regular semigroups by the properties of their (∈,∈∨qk)-fuzzy ideals.
Madad Khan, Saima Anis
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Regularity of Po-Γ-semigroups in Terms of Fuzzy Subsemigroups and Fuzzy Bi-ideals
Fuzzy Information and Engineering, 2015 In this paper, the notions of fuzzy subsemigroups and fuzzy bi-ideals of a po-Γ-semigroup are introduced with some of their important properties investigated. We obtain some characterizations of regular, intra-regular po-Γ-semigroups in terms of fuzzy bi-
Pavel Pal +3 more
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A common framework for restriction semigroups and regular ∗ -semigroups
Journal of Pure and Applied Algebra, 2012 Let \(S\) be a regular \(*\)-semigroup, that is, a semigroup with involution \(a\mapsto a^{-1}\) for which \(a^{-1}\) is an inverse of \(a\). Let \(E_S\) denote the set of idempotents of \(S\) and \(P_S\) the set of \textit{projections} of \(S\), that is, \(P_S=\{e\in E_S:e=e^{-1}\}\).
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Regular Rees matrix semigroups and regular Dubreil-Jacotin semigroups [PDF]
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1981 AbstractA partially ordered semigroup S is said to be a Dubreil-Jacotin semigroup if there is an isotone homomorphism θ of S onto a partially ordered group such that {} has a greatest member. In this paper we investigate the structure of regular Dubreil-Jacotin semigroups in which the imposed partial order extends the natural partial order on the ...
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Congruences on regular semigroups [PDF]
Pacific Journal of Mathematics, 1967 Reilly, N. R., Scheiblich, H. E.
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