Results on fixed points in b-metric space by altering distance functions

Heliyon. 2024 Jul 5;10(14):e33962. doi: 10.1016/j.heliyon.2024.e33962. eCollection 2024 Jul 30.

Abstract

We discuss the existence of a fixed point for a self mapping and its uniqueness satisfying ( ϕ ˙ , η ˙ ) -generalized contractive condition including altering distance functions of rational terms in an ordered b-metric space. It is also discussed whether the two self-maps under the same contraction condition can be coincident and coupled coincident. The results are backed up by a dearth of numerical examples and application to nonlinear quadratic integral equation.

Keywords: ( ϕ ˙ , η ˙ ) -weak contraction; 47H10; 54H25; Coincidence point; Compatible mappings; Fixed point; Ordered metric spaces.