Results 21 to 30 of about 108,334 (223)
Produk Cartesius Semipgrup Smarandache
Smarandache semigroups is an expansion of semigroup structure, by taking a proper subset of semigroups which is in form of group. But, a proper subset which is in form of group cannot always be found in semigroups.
Yuliyanti Dian Pratiwi
doaj +1 more source
On algebraic geometry over completely simple semigroups [PDF]
We study equations over completely simple semigroups and describe the coordinate semigroups of irreducible algebraic sets for such semigroups.
Artem Shevlyakov
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Self-Automaton Semigroups [PDF]
After reviewing automaton semigroups, we introduce Cayley Automata and the corresponding Cayley Automaton semigroups. We investigate which semigroups are isomorphic to their Cayley Automaton semigroup and give some results for special classes of ...
McLeman, Alexander
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Nilpotent Semigroups and Semigroup Algebras
First, the structure of nilpotent semigroups is discussed. If \(S\) is a completely 0-simple semigroup over a maximal group \(G\), then \(S\) is nilpotent if and only if \(G\) is nilpotent and \(S\) is an inverse semigroup. The main results on semigroup algebras are very interesting, but technical; they examine the prime homomorphic images of semigroup
Jespers, E., Okninski, J.
openaire +1 more source
Non-commutative Stone duality: inverse semigroups, topological groupoids and C*-algebras [PDF]
We study a non-commutative generalization of Stone duality that connects a class of inverse semigroups, called Boolean inverse $\wedge$-semigroups, with a class of topological groupoids, called Hausdorff Boolean groupoids. Much of the paper is given over
Lawson, Mark V
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On generalized Ehresmann semigroups
As a generalization of the class of inverse semigroups, the class of Ehresmann semigroups is introduced by Lawson and investigated by many authors extensively in the literature.
Wang Shoufeng
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Asymptotic expansions for Yosida approximations of semigroups
In this paper we provide asymptotic expansions for Yosida approximations of contraction semigroups. We also obtain optimal bounds for convergencerate and remainder terms of asymptotic expansions.
Monika Vilkienė
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Linear inequations with 5-digit and regularity conditions on ordered ternary semigroups [PDF]
We investigate linear inequations with 5-digit of regular elements of ordered ternary semigroups, define the notions of ordered weakly left ideals, ordered weakly right ideals and ordered strong bi-ideals of ordered ternary semigroups, give some ...
Patchara Pornsurat +2 more
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Chomp on numerical semigroups [PDF]
We consider the two-player game chomp on posets associated to numerical semigroups and show that the analysis of strategies for chomp is strongly related to classical properties of semigroups.
García-Marco, Ignacio, Knauer, Kolja
core +3 more sources
Ideals and Green's relations in ordered semigroups
Exactly as in semigroups, Green's relations play an important role in the theory of ordered semigroups—especially for decompositions of such semigroups.
Niovi Kehayopulu
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