Various Meir-Keeler-type conditions for mappings acting in abstract metric spaces are presented and their connections are discussed. Results about associated symmetric spaces, obtained in [S. Radenović, Z. Kadelburg, Quasi-contractions on symmetric and cone symmetric spaces, Banach J. Math. Anal. 5
On cyclic Meir–Keeler contractions in metric spaces
✍ Scribed by Bożena Piątek
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 212 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0362-546X
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✦ Synopsis
Cyclic Meir-Keeler contractions are considered under the recently introduced WUC and HW properties on pairs of subsets of metric spaces. We show that, in contrast with previous results in the theory, best proximity point theorems under these properties do not directly extend from cyclic contractions to cyclic Meir-Keeler contractions. We obtain, however, a positive result for cyclic Meir-Keeler contractions under additional properties which is shown to be an extension of already existing results for cyclic contractions. Moreover, we give examples supporting the necessity of our additional conditions.
📜 SIMILAR VOLUMES
We introduce a notion of cyclic Meir-Keeler contractions and prove a theorem which assures the existence and uniqueness of a best proximity point for cyclic Meir-Keeler contractions. This theorem is a generalization of a recent result due to Eldred and Veeramani.
Let (X; d) be a complete metric space and T : X → X a map. Suppose there exists a function : R + → R + satisfying (0) = 0; (s) ¡ s for s ¿ 0 and that is right upper semicontinuous such that d(Tx; Ty) ≤ (d(x; y)) ∀x; y ∈ X: