Results 71 to 80 of about 529 (158)

Weaker forms of the Menger property in bitopological spaces

open access: yes, 2018
In this paper we continue previous investigations on the weaker forms of the Menger property in bitopological spaces. We introduce weakly Menger property and study some topological properties of almost and weakly Menger bitopological spaces.
A. Emre Eysen   +3 more
core   +2 more sources

Pairwise Generalized b-Ro Spaces in Bitopological Spaces

open access: yes, 2018
The main purpose of this paper is to introduce pairwise generalized b-Ro spaces in bitopological spaces with the help of generalized b-open sets in bitopological spaces and give several characterizations of this spaces.
Tripathy, Binod Chandra   +1 more
core   +1 more source

ON SOME BITOPOLOGICAL SEPARATION AXIOMS

open access: yesJournal of New Theory, 2016
Abstaract−Fletcher et al. [1] introduced the concept of pairwise compactness for bitopological spaces. Reilly extended this concept to a larger class of bitopological spaces, called pairwise Lindel¨of spaces.
Arafa Nasef, Roshdey Mareay
doaj  

New Characterization Of (1,2)S_P-Kernel In Bitopological Spaces [PDF]

open access: yes, 2023
In this paper, the concept of (1,2)S_p-Kernal in bitopological spaces is introduced. Also the closure and kernel are defined in terms of (1,2)S_p-separation using (1,2)S_p-open sets in bitopological spaces and some of its properties are ...
Maheswari, M   +2 more
core   +1 more source

Properties of Separation Axioms in Bitopological Spaces

open access: yesJournal of Bangladesh Academy of Sciences, 2020
In this paper, three notions of separation axioms in bitopological space are discussed. Some relations of topology and bitopology in such notions have been found. Further, that these notions are hereditary and topological property are proved. Journal of Bangladesh Academy of Sciences, Vol. 43, No.
Roshmi, Rupaya, Hossain, M. S.
openaire   +2 more sources

Characterizations of Quasi-Metrizable Bitopological Spaces [PDF]

open access: yesJournal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1988
AbstractIn this paper we prove that a pairwise Hausdorff bitopological space is quasi-metrizable if and only if for each point x ∈ X and for i, j = 1,2, i ≠ j, one can assign nbd bases { S(n, i; x) | n = 1, 2,… } such that (i) y ∉ S (n − 1, i; x) imples S(n, i; x) ∩ S (n, j; y) = φ, (ii) y ∈ S (n, i; x) implies S (n, i; y) ⊂ S(n − 1, i; x). We derive
Raghavan, T. G., Reilly, I. L.
openaire   +2 more sources

Note on generalized neighborhoods structures in fuzzy bitopological spaces [PDF]

open access: yes, 2023
This article's main aim is to study the concepts of the generalized neighborhood and generalized quasi-neighborhood in fuzzy bitopological spaces. It also introduces fundamental theorems for determining the relationships between them.
Ahmed Alharbi, Ahlam, Kilicman, Adem
core   +1 more source

Projective bitopological spaces [PDF]

open access: yesJournal of the Australian Mathematical Society, 1972
J. C. Kelly [2] introduced the concept of a bitopological space. Lane [3], Patty [4] and Pervin [5] have continued his work. Our purpose in this paper is to identify the projective objects in a suitable category of bitopological spaces after the manner of Gleason [1] and generalize his theorem that in the category of compact Hausdoriff topological ...
openaire   +1 more source

On 3-topological version of θ-regularity

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
We modify the concept of θ-regularity for spaces with 2 and 3 topologies. The new, more general property is fully preserved by sums and products.
Martin M. Kovár
doaj   +1 more source

Near ω-continuous multifunctions on bitopological spaces [PDF]

open access: yes, 2019
In this paper, we introduce and study basic characterizations, several properties of upper (lower) nearly (i; j)-!-continuous multifunctions on bitopological space.Rosas, E.Carpintero, C.Rajesh, N.Shanthi ...
Shanthi, S.   +3 more
core   +1 more source

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