International Journal of Nonlinear Analysis and Applications

New fixed point theorems in midconvex subgroups of abelian Banach groups

Document Type : Research Paper

Authors

Department of Mathematics, Payame Noor University, P.O.BOX 19395-3697, Tehran, Iran.

Abstract

In this paper, using continuous, injective, and sequentially convergent mappings on a group, new generalizations of Kannan and Chatterjea's fixed points in Banach groups are presented. we generalize contractions with constants to prove some fixed point theorems in a Banach group. Moreover, nondecreasing continuous functions from the set of positive real numbers to itself are used to introduce a new extension of contractions on normed groups.

Keywords

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International Journal of Nonlinear Analysis and Applications
Volume 13, Issue 1
March 2022
Pages 3169-3180
  • Receive Date: 01 December 2020
  • Revise Date: 30 May 2021
  • Accept Date: 12 June 2021