ON δ–β–GENERALIZED CLOSED SETS IN TOPOLOGICAL SPACES

  • MANISHA SHRIVASTAVA
    Department of Mathematics, Govt. J. Y. Chhattisgarh College, Raipur, Chhattisgarh- 492001, INDIA
    shrivastavamanisha9@gmail.com
  • TAKASHI NOIRI
    2949-1 Shiokita-cho, Hinagu, Yatsushiro-shi, Kumamoto-ken - 869-5142, JAPAN
    t.noiri@nifty.com
  • PURUSHOTTAM JHA
    Department of Mathematics, Govt. J. Y. Chhattisgarh College, Raipur, Chhattisgarh- 492001, INDIA
    purushjha@gmail.com

Abstract

The concepts of δ–β–open sets and δ–β–continuous functions have been introduced by Hatir and Noiri [12] and the ideas were further investigated and their properties have been explored in [13]. In the present paper we introduce a new notion of generalized closed sets called δβg–closed sets in topological spaces which is the more general form of generalized δ–closed, δ–generalized–semi–closed, δ generalized preclosed and δ–β–closed sets. Extending this idea to define and study δβg–quotient maps and δβg-regular and δβg–normal spaces, the authors have explored further characterizations of the new concept.

Cuvinte cheie

δβg-open/closed sets δβg-quotient maps δβ-generalized continuous/ irresolute functions δβg-regular/normal spaces