Results 81 to 90 of about 144,318 (259)
Representation of right zero semigroups and their semilattices by a transformation semigroup
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022 Background. As is known, an arbitrary semigroup can be represented by a semigroup of transformations that are right shifts either in this semigroup itself or in the extended semigroup obtained from the original one by adding an outer unit. The problems
L.V. Zyablitseva +2 more
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A Semigroup associated to a linear control system on a Lie group
, 2016 Let us consider a linear control system \Sigma on a connected Lie group G. It is known that the accessibility set A from the identity e is in general not a semigroup. In this article we associate a new algebraic object S to \Sigma which turns out to be a
Ayala, Victor, da Silva, Adriano
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Approximate biprojectivity of certain semigroup algebras [PDF]
, 2014 In this paper, we investigate the notion of approximate biprojectivity for semigroup algebras and for some Banach algebras related to semigroup algebras.
Pourabbas, A., Sahami, A.
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Pi Semigroup Algebras of Linear Semigroups [PDF]
Proceedings of the American Mathematical Society, 1990 It is well-known that if a semigroup algebra K [ S ] K[S] over a field K K satisfies a polynomial identity then the semigroup S S has the permutation property. The converse is not true in general even when S S is a group.
Jan Okniński, Mohan S. Putcha
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Inverse semigroup actions as groupoid actions [PDF]
, 2011 To an inverse semigroup, we associate an étale groupoid such that its actions on topological spaces are equivalent to actions of the inverse semigroup. Both the object and the arrow space of this groupoid are non-Hausdorff. We show that this construction
Alcides Buss, R. Exel, R. Meyer
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Regularity of Semigroups of Transformations Whose Characters Form the Semigroup of a Δ-Structure
International Journal of Mathematics and Mathematical Sciences, 2020 In this paper, we make use of the notion of the character of a transformation on a fixed set X, provided by Purisang and Rakbud in 2016, and the notion of a Δ-structure on X, provided by Magill Jr.
Jittisak Rakbud, Malinee Chaiya
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Journal of Algebra, 2003 This paper continues the investigation of \(RC\)-semigroups introduced by the authors [in Semigroup Forum 62, No. 2, 279-310 (2001; Zbl 0982.20051)]. ``Spiritually'', this paper is close to previous investigations of \textit{B. Schweizer} and \textit{A. Sklar} [e.g., Bull. Am. Math. Soc. 73, 510-515 (1967; Zbl 0217.01703)]. ``Agreeable semigroups'' are
Jackson, Marcel., Stokes, Tim.
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Fuzzy semigroups via semigroups
, 2023 The theory of fuzzy semigroups is a branch of mathematics that arose in early 90's as an effort to characterize properties of semigroups by the properties of their fuzzy subsystems which include, fuzzy subsemigroups and their alike, fuzzy one (resp. two) sided ideals, fuzzy quasi-ideals, fuzzy bi-ideals etc.
Krakulli, Anjeza, Pasku, Elton
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Semigroup compactifications by generalized distal functions and a fixed point theorem
International Journal of Mathematics and Mathematical Sciences, 1991 The notion of Semigroup compactification which is in a sense, a generalization of the classical Bohr (almost periodic) compactification of the usual additive reals R, has been studied by J. F. Berglund et. al. [2].
R. D. Pandian
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