Results 1 to 10 of about 4,912,920 (327)

On some spaces via topological ideals

open access: yesOpen Mathematics, 2023
Our main purpose is to introduce and investigate the concepts of some forms of spaces via topological ideals. Some characterizations of some forms of spaces via topological ideals are established.
Boonpok Chawalit
doaj   +2 more sources

On Characterizations of ∗-Hyperconnected Ideal Topological Spaces

open access: yesJournal of Mathematics, 2020
In the present paper, some characterizations of ∗-hyperconnected ideal topological spaces are investigated. Moreover, we introduce the notion of S∗-ℐ-hyperconnected ideal topological spaces.
Chawalit Boonpok
doaj   +2 more sources

On complete topological spaces [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1935
DEFINITION I. If M is a space in which there is defined a metric dist (f, g) satisfying the usual postulates for distance ([1], p. 94), then a sequence F: fl, f2, * * * is fundamental if, for every 3>0, there exists an n = nli (3) such that m, n > ni imply dist (fn, f,) 0, there exists an n2 = n2(8) such that n > n2 implies dist (f, f,) < 8.
John von Neumann
openalex   +4 more sources

Announcement as effort on topological spaces. [PDF]

open access: yesSynthese, 2019
We propose a multi-agent logic of knowledge, public announcements and arbitrary announcements, interpreted on topological spaces in the style of subset space semantics.
van Ditmarsch H, Knight S, Özgün A.
europepmc   +3 more sources

Sum of Soft Topological Spaces

open access: yesMathematics, 2020
In this paper, we introduce the concept of sum of soft topological spaces using pairwise disjoint soft topological spaces and study its basic properties.
Tareq M. Al-shami   +2 more
doaj   +2 more sources

Topological Quasilinear Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2012
We introduce, in this work, the notion of topological quasilinear spaces as a generalization of the notion of normed quasilinear spaces defined by Aseev (1986). He introduced a kind of the concept of a quasilinear spaces both including a classical linear
Yılmaz Yılmaz   +2 more
doaj   +4 more sources

Minimal Topological Spaces [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1963
Manuel P. Berri
openalex   +3 more sources

Fibre wise Multi-Perfect Topological Spaces

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2023
The essential objective of this paper is to existing a new notion of fibrewise topological spaces on D is named to be upper perfect topological spaces, lower perfect topological spaces, multi-perfect topological spaces, fibrewise upper perfect ...
Y. Y. Yousif, M.H. Jaber
doaj   +1 more source

Disjoint union of fuzzy soft topological spaces

open access: yesAIMS Mathematics, 2023
In this work, sums of fuzzy soft topological spaces are defined with free union of a pairwise disjoint non-empty family of fuzzy soft topological spaces. Firstly, we give general information of fuzzy soft topological spaces. Then, we define free union of
Arife Atay
doaj   +1 more source

Fibrewise Fuzzy Topological Spaces

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
We introduce and discuss the modern type of fibrewise topological spaces, namely fibrewise fuzzy topological spaces. Also, we introduce the concepts of fibrewise closed fuzzy topological spaces, fibrewise open fuzzy topological spaces, fibrewise locally ...
Yousif Y. Yousif
doaj   +1 more source

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