Results 1 to 10 of about 173 (123)

More on Selective Covering Properties in Bitopological Spaces

open access: yesJournal of Mathematics, 2021
In this study, we continue our investigation of selective covering properties in bitopological spaces. We discuss their behaviour under certain kinds of mappings.
Ljubiša D. R. Kočinac, Selma Özçağ
doaj   +2 more sources

On Cℵ-fibrations in bitopological semigroups. [PDF]

open access: yesScientificWorldJournal, 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 fibration property. Furthermore, we study the pullback maps for Cℵ‐fibrations.
Dawood S, Kılıçman A.
europepmc   +2 more sources

Preopenness Degree in RL-Fuzzy Bitopological Spaces

open access: yesAbstract and Applied Analysis, 2022
Based on the concept of pseudocomplement, we introduce a new representation of preopenness of L-fuzzy sets in RL-fuzzy bitopological spaces. The concepts of pairwise RL-fuzzy precontinuous and pairwise RL-fuzzy preirresolute functions are extended and ...
O. H. Khalil, K. E. El-Helow, A. Ghareeb
doaj   +2 more sources

Some Results of τ1τ2-δ Semiconnectedness and Compactness in Bitopological Spaces

open access: yesJournal of Mathematics, 2018
We are going to establish some results of τ1τ2-δ semiconnectedness and compactness in a bitopological space. Besides, we will investigate several results in τ1τ2-δ semiconnectedness for subsets in bitopological spaces.
M. Arunmaran, K. Kannan
doaj   +2 more sources

A Note on Some Generalized Closed Sets in Bitopological Spaces Associated to Digraphs

open access: yesJournal of Applied Mathematics, 2012
Many investigations are undergoing of the relationship between topological spaces and graph theory. The aim of this short communication is to study the nature and properties of some generalized closed sets in the bitopological spaces associated to the ...
K. Kannan
doaj   +2 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

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

PREOPEN SETS IN SMOOTH BITOPOLOGICAL SPACES [PDF]

open access: yesCommunications of the Korean Mathematical Society, 2003
Summary: We introduce the notions of \((\mathcal T_i,\mathcal T_j)\)-fuzzy \((r,s)\)-preopen sets and fuzzy pairwise \((r,s)\)-precontinuous mappings in smooth bitopological spaces and then we investigate some of their characteristic properties.
Eun-Pyo Lee
exaly   +3 more sources

Pairwise Pythagorean Neutrosophic P-spaces (with dependent neutrosophic components between T and F) [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
In this paper, we study the pairwise Pythagorean Neutrosophic (for shortly,Pairwise PN) bitopological spaces (with T and F are dependent neutrosophic components).
R.Jansi, K.Mohana
doaj   +1 more source

Pairwise Neutrosophic b-Continuous Function in Neutrosophic Bitopological Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
The main focus of this article is to procurethe notions of pairwise neutrosophic continuous and pairwise neutrosophic b-continuous mappings in neutrosophic bitopological spaces.
Binod Chandra Tripathy, Suman Das
doaj   +1 more source

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