Journal of Mathematics (Jan 2018)
Wardowski Type Contractions and the Fixed-Circle Problem on S-Metric Spaces
Abstract
In this paper, we present new fixed-circle theorems for self-mappings on an S-metric space using some Wardowski type contractions, ψ-contractive, and weakly ψ-contractive self-mappings. The common property in all of the obtained theorems for Wardowski type contractions is that the self-mapping fixes both the circle and the disc with the center x0 and the radius r.