UNIFORM NORMAL STRUCTURE AND FIXED POINTS OF NONEXPANSIVE MAPS IN A GENERAL TOPOLOGICAL SPACE (X,τ) WITH A τ-SYMMETRIC FUNCTION

M. Aamri and D. EL Moutawakil

Abstract

          The main purpose of this paper is to define the concept of uniform normal structure and give some new fixed point theorems of nonexpansive maps in a general topological space (X,τ) with a  τ-symmetric function.