Open Access

  

Original research article

Equivalents of Ordered Fixed Point Theorems of Kirk, Caristi, Nadler, Banach, and others

Author(s):

Sehie Park

The National Academy of Sciences, Republic of Korea, Seoul 06579; and Department of Mathematical Sciences, Seoul National University, Seoul 08826, Korea.

Advances in the Theory of Nonlinear Analysis and its Applications 6 (4), 420-432.
Received: February 8, 2022

  

  

  

Accepted: June 5, 2022

  

Published: June 7, 2022

Abstract

Recently, we improved our long-standing Metatheorem in Fixed Point Theory. In this paper, as its applications, some well-known order-theoretic fixed point theorems are equivalently formulated as existence theorems on maximal elements, common fixed points, common stationary points, and others. Such theorems are the ones due to Banach, Nadler, Browder–Göhde–Kirk, Caristi–Kirk, Caristi, Brøndsted, and possibly many others.

Keywords: Fixed point theorem, Pre-order, Metric space, Fixed point, Stationary point, Maximal element.

Share & Cite

APA Style

Park, S. (2022). Equivalents of ordered fixed point theories of Kirk, Caristi, Nadler, Banach, and others. Advances in the Theory of Nonlinear Analysis and its Application , 6 (4), 420-432.