Results 21 to 30 of about 382,533 (273)
On the invariant mean on topological semigroups and on topological groups [PDF]
Pacific Journal of Mathematics, 1965 Edmond E. Granirer
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On semigroups of functions on topological spaces
Journal of Mathematical Analysis and Applications, 1969 Troy L. Hicks, A.G Haddock
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The topology of the free topological semigroup [PDF]
Colloquium Mathematicum, 1975 Donald Marxen
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A topological correspondence between partial actions of groups and inverse semigroup actions [PDF]
Forum mathematicum, 2021 We present some generalizations of the well-known correspondence, found by Exel, between partial actions of a group G on a set X and semigroup homomorphism of 𝒮(G){\operatorname{\mathcal{S}}(G)} on the semigroup I(X){I(X)} of partial bijections of X ...
L. Mart'inez +2 more
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Commutative Topological Semigroups Embedded into Topological Abelian Groups
Axioms, 2020 In this paper, we give conditions under which a commutative topological semigroup can be embedded algebraically and topologically into a compact topological Abelian group.
Julio César Hernández Arzusa
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APPROXIMATE IDENTITY IN CLOSED CODIMENSION ONE IDEALS OF SEMIGROUP ALGEBRAS [PDF]
Journal of Algebraic Systems, 2014 Let S be a locally compact topological foundation semigroup with identity and Ma(S) be its semigroup algebra. In this paper, we give necessary and sufficient conditions to have abounded approximate identity in closed codimension one ideals of the ...
bharam Mohammadzadeh
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Closed subsets of compact-like topological spaces
Applied General Topology, 2020 We investigate closed subsets (subsemigroups, resp.) of compact-like topological spaces (semigroups, resp.). We show that each Hausdorff topological space is a closed subspace of some Hausdorff ω-bounded pracompact topological space and describe open ...
Serhii Bardyla, Alex Ravsky
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On topological McAlister semigroups
Journal of Pure and Applied Algebra, 2023 In this paper we consider McAlister semigroups over arbitrary cardinals and investigate their algebraic and topological properties. We show that the group of automorphisms of a McAlister semigroup $\mathcal{M}_ $ is isomorphic to the direct product $Sym( ){\times}\mathbb{Z}_2$, where $Sym( )$ is the group of permutations of the cardinal $ $.
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Pseudocompact and precompact topological subsemigroups of topological groups
Pracì Mìžnarodnogo Geometričnogo Centru, 2023 It is known that every pseudocompact topological group is precompact, we extend this result to a class of subsemigroup of topological groups. Then we use this results to prove that cancellative locally compact countably compact topological semigroups ...
Julio Cesar Hernandez
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𝜅-topologies for right topological semigroups [PDF]
Proceedings of the American Mathematical Society, 1992 Given a cardinal κ \kappa and a right topological semigroup S S with topology τ \tau , we consider the new topology obtained by declaring any intersection of at most κ \kappa members of τ \tau to be open.
John Pym, John Baker, Neil Hindman
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