International Journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN: 2313-626X

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 Volume 11, Issue 9 (September 2024), Pages: 121-125

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 Original Research Paper

Strongly Dαp-closed graphs in bitopological spaces

 Author(s): 

 Eman Almuhur 1, *, Manal Al-Labadi 2, Maysoon Qousini 3, Raeesa Bashir 4

 Affiliation(s):

 1Department of Mathematics, Faculty of Science, Applied Science Private University, Amman, Jordan
 2Department of Mathematics, Faculty of Arts and Sciences, University of Petra, Amman, Jordan
 3Department of Mathematics, Faculty of Science and Information Technology, Al-Zaytoonah University of Jordan, Amman, Jordan
 4Department of Mathematics, National Institute of Technology, Jammu and Kashmir, India

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 * Corresponding Author. 

  Corresponding author's ORCID profile: https://orcid.org/0000-0002-9837-4179

 Digital Object Identifier (DOI)

 https://doi.org/10.21833/ijaas.2024.09.013

 Abstract

In this paper, we introduce the concepts of Dpα −open, Dpα −closed subsets, pairwise-α-closed, pairwise-g-closed subsets, pairwise-strongly α-closed graph G(f) and strongly Dpα −closed graph of bitopological spaces. We showed that each closed graph is Dpα −closed. In addition, the concepts of Dpα −continuous, open, and closed functions are defined, and the relations between τp-α, τp-g, and  Dpα −continuous functions are clarified. The fact that strongly Dpα −closed graph is Dpα −closed is illustrated. We studied when the graph G(f) is p-strongly closed and p-Dα-closed subsets of the bitopological space (X,τ12). Moreover, the notions of Diα −interior of a subset of X and Diα −closure are defined.

 © 2024 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords

 Dpα −open, Dpα −closed, Bitopological spaces, Dpα −continuous functions, Graph 𝐺(𝑓)

 Article history

 Received 17 May 2024, Received in revised form 4 September 2024, Accepted 6 September 2024

 Acknowledgment

The authors are grateful to the anonymous reviewers for their valuable comments.

 Compliance with ethical standards

 Conflict of interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

 Citation:

 Almuhur E, Al-Labadi M, Qousini M, and Bashir R (2024). Strongly Dpα-closed graphs in bitopological spaces. International Journal of Advanced and Applied Sciences, 11(9): 121-125

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 References (12)

  1. Almuhur E, Qoqazeh H, Atoom A, and Abu-Alkishik N (2023). Pairwise Dα −open and Dα −closed functions in Bitopological spaces. Journal of Xi'an Shiyou University, Natural Sciences Edition, 66(5): 76-86. https://doi.org/10.17605/OSF.IO/R8KH6   [Google Scholar]
  2. Almuhur EMAN and Al-Labadi M (2021). Pairwise strongly Lindelöf, pairwise nearly, almost and weakly Lindelöf bitopological spaces. WSEAS Transactions on Mathematics, 20(16): 152-158. https://doi.org/10.37394/23206.2021.20.16   [Google Scholar]
  3. Al-Saadi H and Al-Malki H (2024). Categories of open sets in generalized primal topological spaces. Mathematics, 12(2): 207. https://doi.org/10.3390/math12020207   [Google Scholar]
  4. Dunham W (1982). A new closure operator for non-T1 topologies. Kyungpook Mathematical Journal, 22(1): 55-60.   [Google Scholar]
  5. Kasahara S (1979). Operation-compact spaces. Mathematica Japonica, 24: 97-105.   [Google Scholar]
  6. Kelly J (1963). Bitopological spaces. Proceedings of the London Mathematical Society, 3(1): 71-89. https://doi.org/10.1007/978-3-662-41914-4   [Google Scholar]
  7. Levine N (1970). Generalized closed sets in topology. Rendiconti del Circolo Matematico di Palermo, 19: 89-96. https://doi.org/10.1007/BF02843888   [Google Scholar]
  8. Njȧstad O (1965). On some classes of nearly open sets. Pacific Journal of Mathematics, 15(3): 961-970. https://doi.org/10.2140/pjm.1965.15.961   [Google Scholar]
  9. Ogata H (1991). Operations on topological spaces and associated topology. Mathematica Japonica, 36(1): 175-184.   [Google Scholar]
  10. Sarsak MS (2013). On µ-compact sets in µ-spaces. Questions Answers General Topology, 31: 49-57.   [Google Scholar]
  11. Sarsak MS (2022). More properties of generalized open sets in generalized topological spaces. Demonstratio Mathematica, 55(1): 404-415. https://doi.org/10.1515/dema-2022-0027   [Google Scholar]
  12. Sayed OR and Khalil AM (2016). Some applications of Dα-closed sets in topological spaces. Egyptian Journal of Basic and Applied Sciences, 3(1): 26-34. https://doi.org/10.1016/j.ejbas.2015.07.005   [Google Scholar]