Some types of compactness in bitopological spaces

Abstract EN

In this paper, we give the concept of N-op en set in bitopological sp aces, where N is the first letter of the name of one of the authors, then we used this concept to define a new kind of compactness, namely N-compactness and we define the N-continuous function in bitop ological sp aces.

We study some properties of N-compact sp aces, and the relationships between this kind and two other known kinds which are S-compactness and pair-wise compactness.