Applications of pre-open & α-open sets in bitopological spaces

Abstract

Using the concept of pre-open set & α-open set in bitopological spaces, we introduce and study topological properties of pre-limit points, pre-derived sets, pre-interior and pre-closure of a set, pre-interior points, α-limit points,  α-derived sets,  -interiαor and  α-closure of a set and    α-interior points in a bitopological space.