Results 31 to 40 of about 13,238,488 (369)

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   +1 more source

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

An example of a non-Borel locally-connected finite-dimensional topological group

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2017
According to a classical theorem of Gleason and Montgomery, every finite-dimensional locally path-connected topological group is a Lie group. In the paper for every $n\ge 2$ we construct a locally connected subgroup $G\subset{\mathbb R}^{n+1}$ of ...
I.Ya. Banakh, T.O. Banakh, M.I. Vovk
doaj   +1 more source

Group actions on topological graphs [PDF]

open access: yes, 2010
We define the action of a locally compact group $G$ on a topological graph $E$. This action induces a natural action of $G$ on the $C^*$-correspondence ${\mathcal H}(E)$ and on the graph $C^*$-algebra $C^*(E)$.
Deaconu, Valentin   +2 more
core   +3 more sources

Derivative for Functions f:GH, Where G Is a Metric Divisible Group

open access: yesMathematics, 2022
In this paper, a derivative for functions f:G→H, where G is any metric divisible group and H is a metric Abelian group with a group metric, is defined. Basic differentiation theorems are stated and demonstrated. In particular, we obtain the Chain Role.
Héctor Andrés Granada Díaz   +2 more
doaj   +1 more source

A Study on Neutrosophic Bitopological Group [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
In this paper we try to introduce neutrosophic bitopological group. We try to investigate some new definition and properties of neutrosophic bitopological group.
Bhimraj Basumatary, Nijwm Wary
doaj   +1 more source

On subgroups of minimal topological groups [PDF]

open access: yes, 2007
A topological group is minimal if it does not admit a strictly coarser Hausdorff group topology. The Roelcke uniformity (or lower uniformity) on a topological group is the greatest lower bound of the left and right uniformities.
Alexandrov   +59 more
core   +3 more sources

Partially topological group action

open access: yesApplied General Topology, 2018
The concept of partially topological group was recently introduced in [3]. In this article, we define partially topological group action on partially topological space and we generalize some fundamental results from topological group action theory.
M. A. Al Shumrani
doaj   +1 more source

Equivariant Movability of Topological Groups [PDF]

open access: yesTopology and its Applications, 159 (2012), 1761--1766, 2023
The equivariant movability of topological spaces with an action of a given topological group $G$ is considered. In particular, the equivariant movability of topological groups is studied. It is proved that a second countable group $G$ is Lie if and only if it is equivariantly movable.
arxiv   +1 more source

Magnetic topological quantum chemistry [PDF]

open access: yesNature Communications, 2020
For over 100 years, the group-theoretic characterization of crystalline solids has provided the foundational language for diverse problems in physics and chemistry.
Benjamin J. Wieder   +6 more
semanticscholar   +1 more source

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