Results 21 to 30 of about 173 (123)

(τ1, τ2)α‐Continuity for Multifunctions

Journal of Mathematics, Volume 2020, Issue 1, 2020., 2020
The main goal of this article is to introduce the concepts of upper and lower (τ1, τ2)α‐continuous multifunctions. Characterizations of upper and lower (τ1, τ2)α‐continuous multifunctions are investigated. The relationships between upper and lower (τ1, τ2)α‐continuous multifunctions and the other types of continuity are discussed.
Chokchai Viriyapong, Chawalit Boonpok, Frédéric Mynard   +2 more
wiley   +1 more source

GENERALIZED δ-S∧ij- SETS IN BITOPOLOGICAL SPACES [PDF]

Assiut University Journal of Multidisciplinary Scientific Research, 2016
GENERALIZED δ-S∧ij-SETS IN BITOPOLOGICAL SPACES In this paper, we introduce and study ij -δ- semi closed and ij  -δ- semi open sets in bitopological spaces.
doaj   +1 more source

Pairwise Paracompactness

Ratio Mathematica, 2020
The purpose of this paper is to introduce the generalizations of paracompactness in bitopological spaces using (Ti; Tj)- g*omega alpha-closed sets. Further, the properties of (Ti; Tj)- g*omega alpha--closed sets, (Ti; Tj)- g*omega alpha--continuous ...
Pallavi S. Mirajakar, P.G. Patil
doaj   +1 more source

Some Modifications of Pairwise Soft Sets and Some of Their Related Concepts

Mathematics, 2021
In this paper, we first define soft u-open sets and soft s-open as two new classes of soft sets on soft bitopological spaces. We show that the class of soft p-open sets lies strictly between these classes, and we give several sufficient conditions for ...
Samer Al Ghour
doaj   +1 more source

Separation axioms on soft bitopological spaces [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2020
We introduce the notions of soft relative bitopology. We investigated some properties on the separation axioms in soft bitopological spaces, i.e. soft Ti -spaces for i=1, 2, 3, and 4.
Piyali Debnath, Binod Chandra Tripathy
doaj   +1 more source

Number of Neutrosophic Topological Spaces on Finite Set with k ≤ 4 Open Sets [PDF]

Neutrosophic Sets and Systems, 2023
In this paper, the number of neutrosophic topological spaces having two, three, and four open sets are computed for a finite set X NT whose membership values lies in MNT.
Bhimraj Basumatary, Jili Basumatary
doaj   +1 more source

Pairwise Generalized Semi Operation Continuous Mappings [PDF]

Assiut University Journal of Multidisciplinary Scientific Research
Our aim of this paper is to continue the study of operations on generalized semi open sets in bitopological spaces which was initiated in 2024 by Khedr et al. [12].
Eman Abdelgaber, Fathi Khedr, Mohammed Abd-Allah   +2 more
doaj   +1 more source

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

مجلة 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

Some Types of Mappings in Bitopological Spaces

مجلة بغداد للعلوم, 2021
This work, introduces some concepts in bitopological spaces, which are nm-j-ω-converges to a subset, nm-j-ω-directed toward a set, nm-j-ω-closed mappings, nm-j-ω-rigid set, and nm-j-ω-continuous mappings. The mainline idea in this paper is nm-j-ω-perfect
G. S. Ashaea , Yousif Yaqoub
doaj   +1 more source

Asymmetric maximal and minimal open sets [PDF]

Mathematica Moravica, 2016
We introduce the notions of maximal and minimal open sets in bitopological spaces and obtain some properties of them. In contrary to maximal and minimal open sets in topological spaces, we observe that maximal and minimal open sets in bitopological ...
Mukharjee Ajoy, Choudhury Roy Arup, Bose M.K.   +2 more
doaj