Results 231 to 240 of about 144,318 (259)

Semigroup Actions of Expanding Maps

, 2016
We consider semigroups of Ruelle-expanding maps, parameterized by random walks on the free semigroup, with the aim of examining their complexity and exploring the relation between intrinsic properties of the semigroup action and the thermodynamic ...
M. Carvalho, F. Rodrigues, P. Varandas
semanticscholar   +1 more source

Semigroup C * -algebras

, 2016
This is a survey article about recent developments in semigroup C*-algebras. These C*-algebras generated by left regular representations of semigroups have been studied for some time, but it was only recently that several new connections and results were
Xin Li
semanticscholar   +1 more source

The tight groupoid of an inverse semigroup

Semigroup Forum, 2014
In this work we present algebraic conditions on an inverse semigroup S\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek ...
R. Exel, Enrique Pardo
semanticscholar   +1 more source

Semigroup Varieties and Semigroup Algebras

Semigroup Forum, 1999
The author proves several results of the following flavour: given an important ring-theoretical property \(\Theta\), he describes (both structurally and in the language of identities) all semigroup varieties \(V\) such that for each (or for each finite, or for each locally finite) semigroup \(S\in V\), the semigroup algebra \(FS\) over a field \(F ...
openaire   +2 more sources

The structure of a graph inverse semigroup

, 2014
Given any directed graph E one can construct a graph inverse semigroupG(E), where, roughly speaking, elements correspond to paths in the graph. In this paper we study the semigroup-theoretic structure of G(E).
Z. Mesyan, James D. Mitchell
semanticscholar   +1 more source

Metrized Semigroups

Journal of Mathematical Sciences, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berestovskii, V. N., Gichev, V. M.
openaire   +2 more sources

Generalized Bicyclic Semigroups and Jones Semigroups

Southeast Asian Bulletin of Mathematics, 2001
A classic result of Anderson is that if a simple, but not completely simple, semigroup \(S\) contains an idempotent, then it contains a copy of the bicyclic monoid \(B=\langle a,b\mid ab=1\rangle\). The reviewer [Proc. R. Soc. Edinb., Sect. A 106, 11-24 (1987; Zbl 0626.20047)] showed that if such a semigroup is idempotent-free and Green's relation ...
Yu, Bingjun, Jiang, Qifen
openaire   +3 more sources

Ternary semigroups

Semigroup Forum, 2010
A regularity condition on a ternary semigroup is introduced and some properties of regular ternary semigroups are investigated. A semigroup called cover of a ternary semigroup is constructed and some of its properties are studied.
Santiago, M. L., Sri Bala, S.
openaire   +2 more sources

Canonical semigroups

Semigroup Forum, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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*-orderable semigroups

Semigroup Forum, 2009
A semigroup algebra \(kS\) admits a total ordering if and only if the field \(k\) is formally real and \(S\) is a cancellative orderable semigroup. The case of \(*\)-orderability of \(kS\) is much harder. The notion of a \(*\)-ordering has been extended from division rings to general noncommutative rings in a series of papers by \textit{M.
Klep, Igor, Moravec, Primož
openaire   +2 more sources