Fuzzy $beta$-compactness and fuzzy $beta$-closed spaces

Fuzzy $beta$-compactness and fuzzy $beta$-closed spaces

The concepts of $beta$-compactness and $beta$-closed spaces in the fuzzy setting are defined and investigated. Fuzzy filterbases are used to characterize these concepts. A comparison between these types and some different forms of compactness in fuzzy topology is established.

___

  • [1] M.E. Abd El-Monsef and S.N. El-Deeb and R.A. Mahmoud, /3-open sets and ^-continuous mappings, Bull. Fac. Sci., Assiut Univ., 12, 77-90 (1983).
  • [2] M.E. Abd El-Monsef and A.M. Kozae, Some generalized forms of compactness and closed-ness, Delta J. Sci. 9(2), 257-269 (1985).
  • [3] A. Andrijevic, Semi-preopen sets. Mat. Vesnik 38, 24-32 (1986).
  • [4] K.K. Azad, On fuzzy semicontinuity, fuzzy almost continuity and fuzzy weakly continuity, J. Math. Anal. Appl, 82, 14-32 (1981).
  • [5] Balasubramanian, Ganesan, On fuzzy /3-compact spaces and fuzzy /3-extremally discon¬nected spaces, Kybernetika [cybernetics] 33, no. 3, 271-277 (1997).
  • [6] D. Coker and A. Haydar Es, On fuzzy S-closed spaces, Doga Tu J. Math., 145-152 (1987).
  • [7] A. Di Concillio and G. Gerla, Almost compactness in fuzzy topological spaces, Fuzzy Sets and Systems, 13, 187-192 (1984).
  • [8] M.A. Fath Alia, On fuzzy topological spaces, Ph. D. Thesis, Assiut Univ., Sohag, Egypt (1984).
  • [9] S. Ganguly and S. Saha, A note on compactness in fuzzy setting, Fuzzy Sets and Systems, 34, 117-124 (1990).
  • [10] B. Ghosh, Semicontinuous and semiclosed mappings and semi-connectedness in fuzzy set¬ting, Fuzzy Sets and Systems, 35, 345-355 (1990).
  • [11] G. Di. Maio and T. Noiri, On s-closed spaces, Indian J. Pure Appl. Math., 18(3), 226-233 (1987).
  • [12] A.S. Mashhour, A!A. Allam and K.M. Abd El-Hakeim, On fuzzy semicompact spaces, Bull. Fac. Sci., Assiut Univ., 16(1), 277-285 (1987).
  • [13] Pu Pao-Ming and Liu Ying-Ming, Fuzzy topology I. Neighborhood structure of a fuzzy point and Moore-smith convergence, J. Math. Anal. Appl., 76, 571-599 (1980).
  • [14] S. Nanda, Strongly compact fuzzy topological spaces, Fuzzy Sets and Systems, 42, 259-262 (1991).
  • [15] M.K. Singal and N, Prakash, Fuzzy preopen sets and fuzzy preseparation axioms, Fuzzy Sets and Systems, 44, 273-281 (1991).
  • [16] T.H. Yalvac, Fuzzy sets and functions on fuzzy topological spaces, J. Math. Anal. AppL, 126, 409-423 (1987).
  • [17] A.M. Zahran, Strongly compact and P-closed fuzzy topological spaces, J. Fuzzy Math., 3(1), 97-102 (1995).