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The numerical duplication of a numerical semigroup
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]
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
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
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The Source of Semiprimeness of Semigroups
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
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The Ornstein–Uhlenbeck semigroup in finite dimension
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]
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
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
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Semiprimeness of semigroup algebras
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
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Quantitative recurrence for free semigroup actions [PDF]
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]
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