Results 1 to 10 of about 141 (131)

(τ 1,τ 2)δ-semicontinuous multifunctions. [PDF]

open access: yesHeliyon, 2020
The purpose of the present article is to introduce the concepts of upper and lower (τ1,τ2)δ-semicontinuous multifunctions. Some characterizations of upper and lower (τ1,τ2)δ-semicontinuous multifunctions are investigated.
Boonpok C.
europepmc   +2 more sources

On r-Compactness in Topological and Bitopological Spaces

open access: yesAxioms, 2023
This paper defines the so-called pairwise r-compactness in topological and bitopological spaces. In particular, several inferred properties of the r-compact spaces and their connections with other topological and bitopological spaces are studied ...
Jamal Oudetallah   +2 more
doaj   +3 more sources

Neutrosophic Bitopological Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2019
In this study, bitopological structure which is a more general structure than topological spaces is built on neutrosophic sets. The necessary arguments which are pairwise neutrosophic open set, pairwise neutrosophic closed set, pairwise neutrosophic ...
Taha Yasin Ozturk, Alkan Ozkan
doaj   +3 more sources

Neutrosophic Fuzzy Pairwise Local Function and Its Application [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
In this paper we introduce the notion of neutrosophic fuzzy bitopological ideals. The concept of neutrosophic fuzzy pairwise local function is also introduced here by utilizing the neutrosophic quasi-coincident neighbourhood structure in a neutrosophic ...
A. A. Salam   +2 more
doaj   +1 more source

Introduction to anti-bitopological spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
The main aim of this study is to introduce the notion of anti-bitopological space and to reintroduce some basic concepts of topology in this novel framework.
Jeevan Krishna Khaklary, Tomasz Witczak
doaj   +1 more source

Study of -open function and Inductively -open function in bitopological spaces [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
: A new definition of bitopological space is introduce in this paper with its -open set -open function , and inductively -open function and on some theorems for its .Key words: -open function , Inductively , bitopological ...
Nadia Ali Nadhim
doaj   +1 more source

Characterization of Soft S-Open Sets in Bi-Soft Topological Structure Concerning Crisp Points

open access: yesMathematics, 2020
In this article, a soft s-open set in soft bitopological structures is introduced. With the help of this newly defined soft s-open set, soft separation axioms are regenerated in soft bitopological structures with respect to crisp points.
Arif Mehmood   +3 more
doaj   +1 more source

A Note on Neutrosophic Bitopological Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
In this paper, we have introduced the idea on neutrosophic bitopological space and studied its properties with examples. We have defined several definitions of neutrosophic interior, closure and boundary also we have studied all of its ...
Dimacha Dwibrang Mwchahary   +1 more
doaj   +1 more source

Pairwise Semiregular Properties on Generalized Pairwise Lindelöf Spaces

open access: yesInternational Journal of Analysis and Applications, 2023
Let (X, τ1, τ2) be a bitopological space and (X, τs(1,2), τs(2,1)) its pairwise semiregularization. Then a bitopological property P is called pairwise semiregular provided that (X, τ1, τ2) has the property P if and only if (X, τs(1,2), τs(2,1)) has the ...
Zabidin Salleh
doaj   +1 more source

On c-Compactness in Topological and Bitopological Spaces

open access: yesMathematics, 2023
The primary goal of this research is to initiate the pairwise c-compact concept in topological and bitopological spaces. This would make us to define the concept of c-compact space with some of its generalization, and present some necessary notions such ...
Rehab Alharbi   +3 more
doaj   +1 more source

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