Contractive gauge functions in strongly orthogonal metric spaces

Document Type: Research Paper

Authors

1 Department of Mathematics, Faculty of Mathematics, University of Bojnord, Bojnord, Iran

2 Department of Mathematics, Faculty of Mathematics, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, Iran

Abstract

Existence of fixed point in orthogonal metric spaces has been initiated recently by Eshaghi and et al. [On orthogonal sets and Banach fixed Point theorem, Fixed Point Theory, in press]. In this paper, we introduce the notion of the strongly orthogonal sets and prove a genuine generalization of Banach' fixed point theorem and Walter's theorem. Also, we give an example showing that our main theorem is a real generalization of these fixed point theorems.

Keywords

International Journal of Nonlinear Analysis and Applications

Volume 8, Issue 2
Summer and Autumn 2017
Pages 23-28

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