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Search: MSC category 47H09 ( Contraction-type mappings, nonexpansive mappings, $A$-proper mappings, etc. )

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1. CJM 2011 (vol 63 pp. 533)

Espínola, Rafa; Fernández-León, Aurora
 On Best Proximity Points in Metric and Banach Spaces In this paper we study the existence and uniqueness of best proximity points of cyclic contractions as well as the convergence of iterates to such proximity points. We take two different approaches, each one leading to different results that complete, if not improve, other similar results in the theory. Results in this paper stand for Banach spaces, geodesic metric spaces and metric spaces. We also include an appendix on CAT$(0)$ spaces where we study the particular behavior of these spaces regarding the problems we are concerned with. Categories:54H25, 47H09
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