ON Ψδ-SETS AND Ψδ-FUNCTIONS DEFINED BY IDEALS

Abstract

In this paper, we introduce two operator associate with Ψ and δ-int operators in ideal topological spaces and investigate their properties. We will use the composite of these operators to offer a finer topology on X than τδ by utilizing the new notions of ΨδO(X). Also, we will use a special ideal to define ωδ-open and ωδ-closed sets. Finally, we will give some of the fundamental properties of such sets and some existing functions in the literature.