R-Generalized Fuzzy Closed Sets with Respect to an Ideal in Fuzzy Topological Spaces

Abstract

The work in this paper is a generalization The concept of r-generalized fuzzy closed sets in fuzzy topological spaces was introduced by Kim. In this paper, we introduce and study the concept of r-generalized fuzzy closed sets with respect to an ideal in an ideal fuzzy topological space in Sostak sense.