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On interior bases of a semigroup [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2022
The main purpose of this paper is to introduce the concept of interior bases of a semigroup. In addition, we give a characterization when a non-empty subset of a semigroup is an interior base of a semigroup and give necessary and sufficient conditions ...
Wichayaporn Jantanan   +3 more
doaj   +1 more source

The Source of Semiprimeness of Semigroups

open access: yesJournal of Mathematics, 2021
In this study, we define new semigroup structures using the set SS=a∈S|aSa=0 which is called the source of semiprimeness for a semigroup S with zero element.
Barış Albayrak   +2 more
doaj   +1 more source

On the Structure Space of a Г -Semigroup Via Its Left Operator Semigroup

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2022
The structure space of a semigroup endowed with hull kernel topology is introduced and studied. Also the structure space of a Г -semigroup is defined and a homeomorphism has been established between structure space of a Г -semigroup and the structure ...
Goswami Sarbani Mukherjee   +2 more
doaj   +1 more source

Self-injectivity of semigroup algebras

open access: yesOpen Mathematics, 2020
It is proved that for an IC abundant semigroup (a primitive abundant semigroup; a primitively semisimple semigroup) S and a field K, if K 0[S] is right (left) self-injective, then S is a finite regular semigroup.
Guo Junying, Guo Xiaojiang
doaj   +1 more source

Finite coverings of semigroups and related structures [PDF]

open access: yesInternational Journal of Group Theory, 2023
For a semigroup $S$, the covering number of $S$ with respect to semigroups, $\sigma_s(S)$, is the minimum number of proper subsemigroups of $S$ whose union is $S$.
Casey Donoven, Luise-Charlotte Kappe
doaj   +1 more source

Semiprimeness of semigroup algebras

open access: yesOpen Mathematics, 2021
Abundant semigroups originate from p.p. rings and are generalizations of regular semigroups. The main aim of this paper is to study the primeness and the primitivity of abundant semigroup algebras.
Guo Junying, Guo Xiaojiang
doaj   +1 more source

Series with Commuting Terms in Topologized Semigroups

open access: yesAxioms, 2021
We show that the following general version of the Riemann–Dirichlet theorem is true: if every rearrangement of a series with pairwise commuting terms in a Hausdorff topologized semigroup converges, then its sum range is a singleton.
Alberto Castejón   +2 more
doaj   +1 more source

Pseudo-amenability and pseudo-contractibility of restricted semigroup algebra

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2018
In this article the pseudo-amenability and pseudo-contractibility of restricted semigroup algebra lr1(S) and semigroup algebra, l1(Sr) on restricted semigroup, Sr are investigated for different classes of inverse semigroups such as Brandt semigroup, and ...
Olufemi Johnson Ogunsola   +1 more
doaj   +1 more source

Matroids related to groups and semigroups

open access: yesResearches in Mathematics, 2023
Matroid is defined as a pair $(X,\mathcal{I})$, where $X$ is a nonempty finite set, and $\mathcal{I}$ is a nonempty set of subsets of $X$ that satisfies the Hereditary Axiom and the Augmentation Axiom.
D.I. Bezushchak
doaj   +1 more source

Introducing Fully Up-Semigroups

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2018
In this paper, we introduce some new classes of algebras related to UP-algebras and semigroups, called a left UP-semigroup, a right UP-semigroup, a fully UP-semigroup, a left-left UP-semigroup, a right-left UP-semigroup, a left-right UP-semigroup, a ...
Iampan Aiyared
doaj   +1 more source

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