Абстрактный

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 ï�?® π-closed ï�?® δ-closed ï�?® δg*-closed ï�?® δ(δg)*-closed ï�?® δg#-closed ï�?® gδ-closed