On contra Λ_I^s -continuous functions and their applications

Abstract

In this work, we introduce and study the classes of contra Λ_I^s-continuous, contra quasi-Λ_I^s-continuous and contra Λ_I^s-irresolute functions in a topological space endowed with an ideal. We investigate the relationships among these functions and their respective characterizations. Also, we analyze the behavior of certain topological notions under direct and inverse images of these new classes of functions.