Document Type : Research Paper

Authors

• Hashem P. Masiha
• Hamid Mamghaderi

K. N. Toosi University of Technology

Abstract

‎In this paper‎, ‎some fixed point theorems for non-expansive mappings in partially ordered spherically complete ultrametric spaces are proved‎. ‎In addition‎, ‎we investigate the existence of fixed points for nonexpansive mappings in partially ordered non-Archimedean normed spaces‎. ‎Finally‎, ‎we give some examples to discuss the assumptions and support of these theorems.‎

Keywords

• ‎Fixed point‎
• ‎partially ordered set‎
• ‎non-Archimedean normed space‎
• ‎ultrametric space‎
• ‎non-expansive mapping‎