DOI QR코드

DOI QR Code

DECOMPOSITION OF CONTINUITY AND COMPLETE CONTINUITY IN SMOOTH FUZZY TOPOLOGICAL SPACES

  • Amudhambigai, B. (Department of Mathematics Sri Saradha College for Women) ;
  • Uma, M.K. (Department of Mathematics Sri Saradha College for Women) ;
  • Roja, E. (Department of Mathematics Sri Saradha College for Women)
  • Received : 2009.09.05
  • Accepted : 2011.04.04
  • Published : 2011.05.31

Abstract

In this paper, fuzzy ${\alpha}^*$-set, fuzzy C-set, fuzzy AB-set, fuzzy t-set, fuzzy B-set, etc., are introduced in the sense of Sostak [12] and Ramadan [9]. By using these sets, a decomposition of fuzzy continuity and complete fuzzy continuity are provided. Characterization of smooth fuzzy extremally disconnected spaces is also obtained in this connection.

Keywords

References

  1. Chang. C. L, Fuzzy topological spaces, J. Math. Anal. Appl. 24 (1968), 182-190. https://doi.org/10.1016/0022-247X(68)90057-7
  2. Chattopadhyay. K. C., Hazra R. N. and Samanta. S. K., Gradation of openness: Fuzzy topology, Fuzzy Sets and System 49 (1992), 237-242. https://doi.org/10.1016/0165-0114(92)90329-3
  3. Hohle. U. and Sostak. A. P., A general theory of fuzzy topological spaces, Fuzzy Sets and Systems 73 (1995), 131-149. https://doi.org/10.1016/0165-0114(94)00368-H
  4. Hohle. U. and Sostak. A. P., Axiomotic Foundations of Fixed - Basis fuzzy topology, The Hand - books of Fuzzy sets series, vol.3, Kluwer Academic Publishers, Dordecht (Chapter 3), 1999.
  5. Kubiak. T. and Sostak. A. P., Lower set valued fuzzy topologies, Questions Math. 20 (1997), 423-429. https://doi.org/10.1080/16073606.1997.9632016
  6. Lowen. R., Fuzzy topological spaces and Fuzzy compactness, J. Math. Anal. Appl. 56 (1976), 621-633. https://doi.org/10.1016/0022-247X(76)90029-9
  7. Peeters. W., Subspaces of smooth fuzzy topologies and initial smooth fuzzy structures, Fuzzy Sets and Systems 104 (1999), 423-433. https://doi.org/10.1016/S0165-0114(98)00318-2
  8. Ramadan. A. A., Smooth topological spaces, Fuzzy Sets and Systems 48 (1992), 371-375. https://doi.org/10.1016/0165-0114(92)90352-5
  9. Ramadan. A. A., Abbas S. E. and Yong Chankim, Fuzzy irresolute mappings in smooth fuzzy topological spaces, The Journal of Fuzzy Mathematics 9 (2001), 865-877.
  10. Samanta. S. K. and Chattopadhyay. K. C., Fuzzy topology: Fuzzy closure operator, Fuzzy compactness and Fuzzy connectedness, Fuzzy Sets and Systems. 54 (1993), 207-212. https://doi.org/10.1016/0165-0114(93)90277-O
  11. Smets. P., The degree of belief in a fuzzy event, Inform Sci. 25 (1981), 1-19. https://doi.org/10.1016/0020-0255(81)90008-6
  12. Sostak. A. P., On a Fuzzy topological structure, Revid. Circ. Matem Palermo (ser II) 11 (1985), 89-103.
  13. Sostak. A. P., On the neighbourhood structure of a fuzzy topological space, zb. Rodova Univ. Nis. Ser. Math. 4 (1990), 7-14.
  14. Sostak. A. P., Basic structures of fuzzy topology, J. Math. Sciences 78 (1996), 662-701. https://doi.org/10.1007/BF02363065
  15. Sugeno. M., An introductory survey of Fuzzy Control, Inform. Sci. 36 (1985), 59-83. https://doi.org/10.1016/0020-0255(85)90026-X
  16. Uma. M. K., Roja. E. and Balasubramanian. G., A New Characterization of Fuzzy Entremally Disconnected Spaces, Atti Sem. Mat. Fis. Univ. Modena e Reggio Emilia, L III, (2005), 289-297.
  17. Zadeh. L. A., Fuzzy sets, Information and Control 8 (1965), 338-353. https://doi.org/10.1016/S0019-9958(65)90241-X