Results 11 to 20 of about 9,365,022 (258)

Partially topological group action [PDF]

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   +2 more sources

On p-topological groups [PDF]

open access: yesMathematica Moravica, 2021
In this paper, we introduce the notions of p-topological group and p-irresolute topological group which are generalizations of the notion topological group.
Jafari Saeid   +2 more
doaj   +1 more source

ω-NARROWNESS AND RESOLVABILITY OF TOPOLOGICAL GENERALIZED GROUPS [PDF]

open access: yesJournal of Algebraic Systems, 2020
. A topological group H is called ω -narrow if for every neighbourhood V of it’s identity element there exists a countable set A such that V A = H = AV.
M. R. Ahmadi Zand, S. Rostami
doaj   +1 more source

GTI-space : the space of generalized topological indices [PDF]

open access: yes, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
Matamala, A.R.   +5 more
core   +4 more sources

A Selection Principle and Products in Topological Groups

open access: yesAxioms, 2022
We consider the preservation under products, finite powers, and forcing of a selection-principle-based covering property of T0 topological groups. Though the paper is partly a survey, it contributes some new information: (1) The product of a strictly o ...
Marion Scheepers
doaj   +1 more source

On the Structure of Topological Spaces

open access: yesAxioms, 2022
The structure of topological spaces is analysed here through the lenses of fibrous preorders. Each topological space has an associated fibrous preorder and those fibrous preorders which return a topological space are called spatial.
Nelson Martins-Ferreira
doaj   +1 more source

★-quasi-pseudometrics on algebraic structures

open access: yesApplied General Topology, 2023
In this paper, we introduce some concepts of ★-(quasi)-pseudometric spaces, and give an example which shows that there is a ★-quasi-pseudometric space which is not a quasi-pseudometric space.
Shi-Yao He, Ying-Ying Jin, Li-Hong Xie
doaj   +1 more source

Long Colimits of Topological Groups III: Homeomorphisms of Products and Coproducts

open access: yesAxioms, 2021
The group of compactly supported homeomorphisms on a Tychonoff space can be topologized in a number of ways, including as a colimit of homeomorphism groups with a given compact support or as a subgroup of the homeomorphism group of its Stone-Čech ...
Rafael Dahmen, Gábor Lukács
doaj   +1 more source

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

Antea Group Archeologie 2020/137

open access: yes, 2022
In juli en september 2020 heeft Antea Group in opdracht van BNVB Projects B.V. een archeologisch onderzoek uitgevoerd voor het plangebied ‘Grutterij 7-9’ te Amstelveen, gemeente Amstelveen.
Looveren, V. van (Antea Group)
core   +1 more source

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