Certain Types of Functions via lambda-Open sets

On Pre-θ-Open Sets and Two Classes of Functions

Some separation axioms via modified θ-open sets

on pre-θ-open sets and two classes of functions

Types of Generalized Open Sets with Ideal

The aim of this paper is to introduce and study the notions of  (resp., pre, semi, )-open sets in terms of an ideal I. These concepts generalize the usual notions of  (resp., pre, semi, ) open sets. Also, several of their topological properties are investigated.

some separation axioms via modified θ-open sets