Abstract

In this article, we study the fixed point theorems for nonspreading mappings, defined by Kohsaka and Takahashi, in Banach spaces but using the sense of norm instead of using the function ϕ. Furthermore, we prove a weak convergence theorem for finding a common fixed point of two quasi-nonexpansive mappings having demiclosed property in a uniformly convex Banach space. Consequently, such theorem can be deduced to the case of the nonspreading type mappings and some generalized nonexpansive mappings. MSC:49J40, 47J20.

Highlights

  • Let T be a mapping on a nonempty subset E of a Banach space X

  • In this article, motivated by Dhompongsa et al [ ], we prove some fixed point theorems for nonspreading mappings for a general Banach space, i.e., nonspreading mappings satisfying ( . ) instead of ( . )

  • We prove a weak convergence theorem for a common fixed point of any two quasi-nonexpansive mappings having demiclosed property in a uniformly convex Banach space

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Summary

Introduction

Let T be a mapping on a nonempty subset E of a Banach space X. ). we prove a weak convergence theorem for a common fixed point of any two quasi-nonexpansive mappings having demiclosed property in a uniformly convex Banach space. 2 Preliminaries Let E be a nonempty closed and convex subset of a Banach space X and {xn} be a bounded sequence in X.

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