Results 101 to 110 of about 1,010,344 (260)
Ordered Semigroups Based on ∈,∈∨qkδ-Fuzzy Ideals
Advances in Fuzzy Systems, 2018 A new trend of using fuzzy algebraic structures in various applied sciences is becoming a central focus due to the accuracy and nondecoding nature. The aim of the present paper is to develop a new type of fuzzy subsystem of an ordered semigroup S.
Faiz Muhammad Khan +3 more
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Automatic presentations for semigroups [PDF]
, 2012 Special Issue: 2nd International Conference on Language and Automata Theory and Applications (LATA 2008)This paper applies the concept of FA-presentable structures to semigroups.
Cain, Alan James +3 more
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A common framework for restriction semigroups and regular ∗ -semigroups
Journal of Pure and Applied Algebra, 2012 Let \(S\) be a regular \(*\)-semigroup, that is, a semigroup with involution \(a\mapsto a^{-1}\) for which \(a^{-1}\) is an inverse of \(a\). Let \(E_S\) denote the set of idempotents of \(S\) and \(P_S\) the set of \textit{projections} of \(S\), that is, \(P_S=\{e\in E_S:e=e^{-1}\}\).
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Regular Rees matrix semigroups and regular Dubreil-Jacotin semigroups [PDF]
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1981 AbstractA partially ordered semigroup S is said to be a Dubreil-Jacotin semigroup if there is an isotone homomorphism θ of S onto a partially ordered group such that {} has a greatest member. In this paper we investigate the structure of regular Dubreil-Jacotin semigroups in which the imposed partial order extends the natural partial order on the ...
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Characterization of Lallement order on a regular semigroup
, 2017 In this paper a study of properties of the Mitsch order relation ’µ’ on a regular semigroup and Nambooripads order ’ν’ on any arbitrary regular semigroup is made. Mainly a characterization of Lallement order on a regular semigroup is obtained.
Srinivas, K. V. R.
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Congruences on regular semigroups [PDF]
Pacific Journal of Mathematics, 1967 Reilly, N. R., Scheiblich, H. E.
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The lattice of full regular subsemigroups of a regular semigroup
, 1984 SynopsisAlthough the regular subsemigroups of a regular semigroup S do not, in general, form a lattice in any naturalway, it is shown that the full regular subsemigroups form a complete sublattice LF of the lattice of all subsemigroups; moreover this ...
Katherine G. Johnston, Peter R. Jones
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Algebras of right ample semigroups
Open Mathematics, 2018 Strict RA semigroups are common generalizations of ample semigroups and inverse semigroups. The aim of this paper is to study algebras of strict RA semigroups.
Guo Junying, Guo Xiaojiang
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Regular congruences on an idempotent-regular-surjective semigroup
, 2013 A semigroup $S$ is called \emph{idempotent-surjective} [\emph{regular-surjective}] if whenever $\rho$ is a congruence on $S$ and $a\rho$ is idempotent [regular] in $S/\rho$, then there is $e\in E_S\cap a\rho$ [$r\in Reg(S)\cap a\rho$], where $E_S$ [$Reg ...
Gigoń, R. S.
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The semigroup of combinatorial configurations
, 2011 We elaborate on the existence and construction of the so-called combinatorial configurations. The main result is that for fixed degrees the existence of such configurations is given by a numerical semigroup.
Bras-Amorós, Maria, +3 more
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