Results 1 to 10 of about 12,478 (182)

On locally compact semitopological O-bisimple inverse ω-semigroups

open access: yesTopological 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   +5 more sources

Categorically Closed Topological Groups

open access: yesAxioms, 2017
Let C → be a category whose objects are semigroups with topology and morphisms are closed semigroup relations, in particular, continuous homomorphisms.
Taras Banakh
doaj   +4 more sources

On Cℵ-Fibrations in Bitopological Semigroups [PDF]

open access: yesThe Scientific World Journal, 2014
We extend the path lifting property in homotopy theory for topological spaces to bitopological semigroups and we show and prove its role in the Cℵ-fibration property. We give and prove the relationship between the Cℵ-fibration property and an approximate
Suliman Dawood, Adem Kılıçman
doaj   +2 more sources

Pseudocompact and precompact topological subsemigroups of topological groups

open access: yesPracì 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
doaj   +1 more source

𝜅-topologies for right topological semigroups [PDF]

open access: yesProceedings 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.
Baker, John, Hindman, Neil, Pym, John
openaire   +2 more sources

(m, n)-Ideals in Semigroups Based on Int-Soft Sets

open access: yesJournal of Mathematics, 2021
Algebraic structures play a prominent role in mathematics with wide ranging applications in many disciplines such as theoretical physics, computer sciences, control engineering, information sciences, coding theory, and topological spaces.
G. Muhiuddin, Abdulaziz M. Alanazi
doaj   +1 more source

Non-commutative Stone duality: inverse semigroups, topological groupoids and C*-algebras [PDF]

open access: yes, 2012
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
core   +1 more source

On the Cohomology of Topological Semigroups

open access: yesCommunications in Advanced Mathematical Sciences, 2019
In this short note, we give some new results on continuous bounded cohomology groups of topological semigroups with values in complex field. We show that the second continuous bounded cohomology group of a compact metrizable semigroup, is a Banach space.
Maysam Maysami Sadr   +1 more
doaj   +1 more source

Ternary semigroups of topological transformations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
A ternary semigroup is a nonempty set with a ternary operation which is associative. The purpose of the present paper is to give a characterization of open sets of finite-dimensional Euclidean spaces by ternary semigroups of pairs of homeomorphic ...
F.Kh. Muradov
doaj   +1 more source

Pseudocompact Primitive Topological Inverse Semigroups [PDF]

open access: yesJournal of Mathematical Sciences, 2014
In the paper we study pseudocompact primitive topological inverse semigroups. We describe the structure of pseudocompact primitive topological inverse semigroups and show that a Tychonoff product of a family of pseudocompact primitive topological inverse semigroups is a pseudocompact topological space.
Gutik, Oleg, Pavlyk, Kateryna
openaire   +2 more sources

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