Results 1 to 10 of about 49,072 (124)

On locally compact semitopological O-bisimple inverse ω-semigroups [PDF]

open access: diamondTopological Algebra and its Applications, 2018
We describe the structure of Hausdorff locally compact semitopological O-bisimple inverse ω- semigroups with compact maximal subgroups. In particular, we show that a Hausdorff locally compact semitopological O-bisimple inverse ω-semigroup with a compact ...
Gutik Oleg
doaj   +9 more sources

Reductive compactifications of semitopological semigroups [PDF]

open access: goldInternational Journal of Mathematics and Mathematical Sciences, 2003
We consider the enveloping semigroup of a flow generated by the action of a semitopological semigroup on any of its semigroup compactifications and explore the possibility of its being one of the known semigroup compactifications again.
Abdolmajid Fattahi   +2 more
doaj   +4 more sources

On the transformation semitopological semigroup [PDF]

open access: greenInternational Mathematical Forum, 2007
In this paper we introduce the notion of weighted (weakly) almost periodic compactifcation of a semitopological semigroup and generalize this notion to corresponding notion for transformation semigroup.The inclusion relation and equality of some well ...
Abolghasemi, M.   +2 more
core   +6 more sources

Nonlinear ergodic theorems for a semitopological semigroup of non-Lipschitzian mappings without convexity [PDF]

open access: goldAbstract and Applied Analysis, 1999
Let G be a semitopological semigroup, C a nonempty subset of a real Hilbert space H, and ℑ={Tt:t∈G} a representation of G as asymptotically nonexpansive type mappings of C into itself.
G. Li, J. K. Kim
doaj   +4 more sources

The group of characters of a pseudocompact locally compact semitopological semigroup

open access: diamondApplied General Topology
We prove that each semitopological semigroup has a reflection in the class of abelian cancellative semitopological semigroups. Then we use this reflection to prove that the group of characters of a locally compact pseudocompact topological semigroup with
Julio César Hernández Arzusa
doaj   +6 more sources

On a semitopological semigroup $\boldsymbol{B}_{\omega}^{\mathscr{F}}$ when a family $\mathscr{F}$ consists of inductive non-empty subsets of $\omega$ [PDF]

open access: diamondМатематичні Студії, 2023
Let $\boldsymbol{B}_{\omega}^{\mathscr{F}}$ be the bicyclic semigroup extension for the family $\mathscr{F}$ of ${\omega}$-closed subsets of $\omega$ which is introduced in \cite{Gutik-Mykhalenych=2020}.
O. V. Gutik, M. S. Mykhalenych
doaj   +4 more sources

A CONSTRUCTION OF A SEMITOPOLOGICAL SEMIGROUP OF SOFT ULTRAFILTERS

open access: diamondIUG Journal of Natural Studies, 2021
Abstract. In this paper, we construct a semitopological semigroup consisting entirely of soft ultrafilters.
Ahmed El-Mabhouh, Wesam Mousa
semanticscholar   +4 more sources

On locally compact semitopological graph inverse semigroups [PDF]

open access: diamondMatematychni Studii, 2018
In this paper we investigate locally compact semitopological graph inverse semigroups. Our main result is the following: if a directed graph $E$ is strongly connected and contains a finite amount of vertices then a locally compact semitopological graph inverse semigroup $G(E)$ is either compact or discrete.
Serhii Bardyla
semanticscholar   +5 more sources

On a semitopological extended bicyclic semigroup with adjoined zero [PDF]

open access: greenJournal of Mathematical Sciences, 2019
8 pages.
Олег Гутік, Kateryna Maksymyk
semanticscholar   +4 more sources

On semitopological simple inverse $\omega$-semigroups with compact maximal subgroups

open access: diamondCarpathian Mathematical Publications
We describe the structure of ($0$-)simple inverse Hausdorff semitopological $\omega$-semigroups with compact maximal subgroups. In particular, we show that if $S$ is a simple inverse Hausdorff semitopological $\omega$-semigroup with compact maximal subgroups, then $S$ is topologically isomorphic to the Bruck-Reilly extension $\left(\mathbf{BR}(T,\theta)
Олег Гутік, Kateryna Maksymyk
semanticscholar   +4 more sources

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