Topological Nearly Entropy on Nearly Compact Spaces

Abstract

In our previous paper [9], we have introduced topological nearly entropy, Ent N (f ) by restricting X into a class of nearly compact spaces. In the present paper, some additional properties of this notion are studied. Furthermore, we introduce another new notion of topological nearly entropy of f denoted by Entn (f ) when the whole space X itself is nearly compact. We show the relationship between these two notions for the class of nearly compact subspaces. We also propose new space, namely, R-space in studying the topological nearly entropy on nearly compact and Hausdorff space. As a consequence, the topological nearly entropy of f and it restriction f | K coincides. Finally, some fundamental properties of topological nearly entropy for product space are obtained.