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The numerical duplication of a numerical semigroup

open access: yes, 2012
In this paper we present and study the numerical duplication of a numerical semigroup, a construction that, starting with a numerical semigroup $S$ and a semigroup ideal $E\subseteq S$, produces a new numerical semigroup, denoted by $S\Join^b\E$ (where ...
D'Anna, Marco, Strazzanti, Francesco
core   +2 more sources

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

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

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

The Ornstein–Uhlenbeck semigroup in finite dimension

open access: yesPhilosophical Transactions of the Royal Society A, 2020
We gather the main known results concerning the non-degenerate Ornstein–Uhlenbeck semigroup in finite dimension. This article is part of the theme issue ‘Semigroup applications everywhere’.
Alessandra Lunardi   +2 more
semanticscholar   +1 more source

Group key management based on semigroup actions [PDF]

open access: yesarXiv.org, 2015
In this work we provide a suite of protocols for group key management based on general semigroup actions. Construction of the key is made in a distributed and collaborative way.
J. A. López-Ramos   +3 more
semanticscholar   +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

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

Quantitative recurrence for free semigroup actions [PDF]

open access: yes, 2016
We consider finitely generated free semigroup actions on a compact metric space and obtain quantitative information on Poincaré recurrence, average first return time and hitting frequency for the random orbits induced by the semigroup action. Besides, we
M. Carvalho, F. Rodrigues, P. Varandas
semanticscholar   +1 more source

Specification and thermodynamical properties of semigroup actions [PDF]

open access: yes, 2015
In the present paper, we study the thermodynamical properties of finitely generated continuous subgroup actions. We propose a notion of topological entropy and pressure functions that do not depend on the growth rate of the semigroup and introduce strong
F. Rodrigues, P. Varandas
semanticscholar   +1 more source

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