Abstracto

δ(δg)*-Closed sets in Topological Spaces

K.Meena , K.Sivakamasundari

In this paper we introduce and study a new class of generalised closed sets called δ(δg)*-closed sets in topological spaces using δg-closed sets. Moreover we analyse the relations between δ(δg)*-closed sets and already existing various closed sets. It is independent of δg-closed sets and weaker than δg*-closed sets. The class of δ(δg)*- closed sets is properly placed between the classes of δg*-closed sets and δg# -closed sets and a chain of relations is proved as follows. r-closed ïÂ?® π-closed ïÂ?® δ-closed ïÂ?® δg*-closed ïÂ?® δ(δg)*-closed ïÂ?® δg#-closed ïÂ?® gδ-closed