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$\mu$-countably compactness and $\mu\mathcal{H}$-countably compactness

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초록

We define and study the notion of $\mu$-countably compact \linebreak spaces in generalized topology and $\mu\mathcal{H}$-countably compact spaces which are considered with respect to a hereditary class $\mathcal{H}$. Some interesting properties and relations are provided in the paper. Moreover, some preservation of functions properties are studied and investigated.

Abstract

We define and study the notion of $\mu$-countably compact \linebreak spaces in generalized topology and $\mu\mathcal{H}$-countably compact spaces which are considered with respect to a hereditary class $\mathcal{H}$. Some interesting properties and relations are provided in the paper. Moreover, some preservation of functions properties are studied and investigated.

참고문헌 (14)

  1. Z. Altawallbeh, "More on almost countably compact spaces", Italian J. Pure Appl. Math, 43, pp.177~184 (2020)
  2. Z. Altawallbeh, "Nearly countably compact spaces", Int. Electron. J. Pure Appl. Math, 8(4), pp.59~66 (2014)[DOI]
  3. C. Carpintero, "µ-compactness with respect to a hereditary class", Boletim da Sociedade Paranaense de Matemática, 34(2), pp.231~236 (2015), Sociedade Paranaense de Matematica[DOI]
  4. Á. Császár, "Generalized topology, generalized continuity", Acta Mathematica Hungarica, 96(4), pp.351~357 (2002), Springer Science and Business Media LLC[DOI]
  5. Ákos Császár, "Generalized open sets in generalized topologies", Acta Mathematica Hungarica, 106(1-2), pp.53~66 (2005), Springer Science and Business Media LLC[DOI]
  6. Á. Császár, "Modification of generalized topologies via hereditary classes", Acta Mathematica Hungarica, 115(1-2), pp.29~36 (2007), Springer Science and Business Media LLC[DOI]
  7. Ákos Császár, "Weak structures", Acta Mathematica Hungarica, 131(1-2), pp.193~195 (2010), Springer Science and Business Media LLC[DOI]
  8. K. Kuratowski, "Topologie" (1933)
  9. Aleksandar Pavlovic, "Local function versus local closure function in ideal topological spaces", Filomat, 30(14), pp.3725~3731 (2016), National Library of Serbia[DOI]
  10. A. Qahis, "µ-Lindelöfness in terms of a hereditary class", Missouri J. Math. Sci, 28(1), pp.15~24 (2016)
  11. Lyngnys Emmanuel de Arruda Saraiva, "Generalized quotient topologies", Acta Mathematica Hungarica, 132(1-2), pp.168~173 (2010), Springer Science and Business Media LLC[DOI]
  12. M. S. Sarsak, "Weak separation axioms in generalized topological spaces", Acta Mathematica Hungarica, 131(1-2), pp.110~121 (2010), Springer Science and Business Media LLC[DOI]
  13. M. S. Sarsak, "Weakly µ-compact spaces", Demonstratio Math, 45(4), pp.929~938 (2012)
  14. A.M. Zahran, "Modification of weak structures via hereditary classes", Applied Mathematics Letters, 25(5), pp.869~872 (2012), Elsevier BV[DOI]

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