Skip to main content
Log in

A Unification of Weakening of Open and Closed Subsets in a Topological Space

  • Published:
Bulletin of the Malaysian Mathematical Sciences Society Aims and scope Submit manuscript

Abstract

In this paper, we unify previous definitions of weakened open subsets in a given topological space. We felt necessary to make this unification since we observed recently too many definitions, actually, more or less significant. We also show that our new framework is more general than the known supra-topological structure. Finally we show that, in our new framework, we can define well several standard topologies like concepts such as convergence, continuity, and compactness. We expect that our new framework could find application in images processing.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Abd El-Monsef, M.E., El-Deeb, S.N., Mahmoud, R.A.: \(\beta \)-open sets and \(\beta \)-continuous mapping. Bull. Fac. Sci. Assiut Univ. 12(1), 77–90 (1983)

    MathSciNet  MATH  Google Scholar 

  2. Al-Omari, A., Noorani, M.S.M.: On generalized b-closed sets. Bull. Malays. Math. Sci. Soc. 32(1), 19–30 (2009)

    MathSciNet  MATH  Google Scholar 

  3. Andrijević, D.: On b-open sets. Mat. Vesnik 48(1–2), 59–64 (1996)

    MathSciNet  MATH  Google Scholar 

  4. Csaszar, A.: Generalized open sets. Acta Math. Hungar. 75, 65–87 (1997)

    Article  MathSciNet  MATH  Google Scholar 

  5. Csaszar, A.: Generalized topology, generalized continuity. Acta Math. Hungar. 96, 351–357 (2002)

    Article  MathSciNet  MATH  Google Scholar 

  6. Devi, R., Sampathkumar, S., Caldas, M.: On supra \(\alpha \)-open sets and S\(\alpha \)-continuous functions. Gen. Math. 16(2), 77–84 (2008)

    MathSciNet  MATH  Google Scholar 

  7. Levine, N.: Semi-open sets and semi-continuity in topological spaces. Am. Math. Mon. 70, 36–41 (1963)

    Article  MathSciNet  MATH  Google Scholar 

  8. Levine, N.: Generalized closed sets in topology. Rend. Circ. Mat. Palermo 19, 89–96 (1970)

    Article  MathSciNet  MATH  Google Scholar 

  9. Mashour, A.S., Abd El-Monsef, M.E., El Deeb, S.N.: On precontinuous and weak precontinuous mappings. Proc. Math. Phys. Soc. Egypt 53, 47–53 (1982)

    MathSciNet  MATH  Google Scholar 

  10. Mashhour, A.S., Allam, A.A., Mahmoud, F.S., Khedr, F.H.: On supratopological spaces. Indian J. Pure Appl. Math. 14(4), 502–510 (1983)

    MathSciNet  MATH  Google Scholar 

  11. Min, W.K.: Some results on generalized topological spaces and generalized systems. Acta Math. Hungar. 108(1,2), 171–181 (2005)

    Article  MathSciNet  MATH  Google Scholar 

  12. Min, W.K.: On weak neighborhood systems and spaces. Acta Math. Hungar. 121(3), 283–292 (2008)

    Article  MathSciNet  MATH  Google Scholar 

  13. Min, W.K., Kim, Y.K.: \(M^*\)-continuity and product minimal structure on minimal structures. Int. J. Pure App. Math. 69(3), 329–339 (2011)

    MathSciNet  MATH  Google Scholar 

  14. Njȧstad, O.: On some classes of nearly open sets. Pac. J. Math. 15(3), 961–970 (1964)

    Article  MathSciNet  Google Scholar 

  15. Njastad, O.: On some classes of nearly open sets. Pac. J. Math. 15, 961–970 (1965)

    Article  MathSciNet  Google Scholar 

  16. Ogata, H.: Operations on topological spaces and associated topology. Math. Jpn. 36(1), 175–184 (1991)

    MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Anis Rezgui.

Additional information

Communicated by V. Ravichandran.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gargouri, R., Rezgui, A. A Unification of Weakening of Open and Closed Subsets in a Topological Space. Bull. Malays. Math. Sci. Soc. 40, 1219–1230 (2017). https://doi.org/10.1007/s40840-016-0345-z

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40840-016-0345-z

Keywords

Mathematics Subject Classification

Navigation