Results 101 to 110 of about 1,009,048 (159)

A groupoid approach to regular ⁎-semigroups

Advances in Mathematics
In this paper we develop a new groupoid-based structure theory for the class of regular $*$-semigroups. This class occupies something of a `sweet spot' between the important classes of inverse and regular semigroups, and contains many natural examples. Some of the most significant families include the partition, Brauer and Temperley-Lieb monoids, among
East, James (R16839), Muhammed, P. A. Azeef   +1 more
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Union soft set theory applied to ordered semigroups

International Journal of Analysis and Applications, 2020
The uni-soft type of bi-ideals in ordered semigroup is considered. The notion of a uni-soft bi-ideal is introduced and the related properties are investigated.
Raees Khan, Asghar Khan, Muhammad Uzair Khan, Nasir Khan   +3 more
doaj  

Eventually Pointed Principally Ordered Regular Semigroups

Sultan Qaboos University Journal for Science
An ordered regular semigroup, , is said to be principally ordered if for every there exists . A principally ordered regular semigroup is pointed if for every element, we have .
G.A. Pinto
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On regular semigroups II: An embedding

Journal of Pure and Applied Algebra, 1986
The core (a word suggested by Mario Petrich) of any regular semigroup S is the subsemigroup of S generated by E(S), where E(S) is the set of idempotents of S. For each \(e\in E(S)\) by \(\prec e\succ\) is denoted the core of the regular subsemigroup eSe. The main result is the following Theorem I.
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Standard regular semigroups [PDF]

Pacific Journal of Mathematics, 1976
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Semigroups: 2.8.0

, 2016
<p>The <strong>Semigroups</strong> package is a <strong>GAP</strong> package containing methods for semigroups, monoids, and inverse semigroups, principally of transformations, partial permutations, bipartitions ...
Pfeiffer, Markus, Egri-Nagy, Attila (8266182), Torpey, Michael, Jonusas, Julius (8266188), Ham, Nicholas (8266185), Ham, Nicholas, Smith, Jhevon (8266197), Pfeiffer, Markus (8266191), Smith, Jhevon, Wilson, Wilf, Egri-Nagy, Attila, Steinberg, Ben, Jonusas, Julius, East, James (8266179), Steinberg, Ben (8266194), Wilson, Wilf (8266203), Mitchell, James D. (8266173), Delgado, Manuel (8266176), Delgado, Manuel, Mitchell, James D., East, James, Torpey, Michael (8266200)   +21 more
core   +1 more source

Structure of regular semigroups, I fundamental regular semigroups

Semigroup Forum, 1974
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Notes on regular semigroups, III

Proceedings of the Japan Academy, Series A, Mathematical Sciences, 1970
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Browder's Convergence for Uniformly Asymptotically Regular Nonexpansive Semigroups in Hilbert Spaces

Fixed Point Theory and Applications, 2010
We give a sufficient and necessary condition concerning a Browder's convergence type theorem for uniformly asymptotically regular one-parameter nonexpansive semigroups in Hilbert spaces.
Suzuki Tomonari, López Acedo Genaro
doaj  

On the structure of 𝜋-regular semigroups [PDF]

Proceedings of the American Mathematical Society, 1964
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