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JOURNALS // Russian Universities Reports. Mathematics // Archive

Russian Universities Reports. Mathematics, 2024 Volume 29, Issue 148, Pages 485–493 (Mi vtamu341)

Scientific articles

$\rho-F$-contraction fixed point theorem

R. Chakara, S. Dehilisa, W. Merchelabc, H. Guebbaib

a Laboratory of Dynamical Systems and Control, Larbi Ben M’Hidi University
b Laboratory of Applied Mathematics and Modeling, 8 May 1945 University
c Mustapha Stambouli University

Abstract: In this paper, we study the question of conditions for the existence and uniqueness of a fixed point of a mapping over a complete metric space. We first discuss the concepts of $F$-contraction and $F^*$-contraction in fixed point theory. These concepts, developed respectively by Wardowski and Piri with Kumam, have catalyzed significant research in various metric spaces. We then propose a generalization of these concepts, $\rho-F$-contraction and $\rho-F^*$-contraction, and demonstrate its effectiveness in ensuring the existence and uniqueness of fixed points. This new approach provides greater flexibility by including a function $\rho$ that modulates the contraction, extending the applicability of $F$- and $F^*$-contractions. We conclude the paper with an example of a mapping that is a $\rho-F$-contraction and a $\rho-F^*$-contraction, respectively, and has a unique fixed point. However, this mapping does not satisfy the conditions of Wardowski and the conditions of Piri and Kumam.

Keywords: fixed-point, existence, uniqueness, $F$-contraction, $\rho-F$-contraction

UDC: 517.98

MSC: 47H10, 54E35

Received: 27.07.2024
Accepted: 06.11.2024

Language: English

DOI: 10.20310/2686-9667-2024-29-148-485-493



© Steklov Math. Inst. of RAS, 2025