Common fixed points of mappings satisfying implicit relations in partial metric spaces

Volume 6, Issue 3, pp 152--161 http://dx.doi.org/10.22436/jnsa.006.03.01

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Authors

Calogero Vetro - Dipartimento di Matematica e Informatica, Universita degli Studi di Palermo, via Archirafi 34, 90123 Palermo, Italy. Francesca Vetro - DEIM, Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy.

Abstract

Matthews, [S. G. Matthews, Partial metric topology, in: Proc. 8th Summer Conference on General Topology and Applications, in: Ann. New York Acad. Sci., vol. 728, 1994, pp. 183-197], introduced and studied the concept of partial metric space, as a part of the study of denotational semantics of data flow networks. He also obtained a Banach type fixed point theorem on complete partial metric spaces. Very recently Berinde and Vetro, [V. Berinde, F. Vetro, Common fixed points of mappings satisfying implicit contractive conditions, Fixed Point Theory and Applications 2012, 2012:105], discussed, in the setting of metric and ordered metric spaces, coincidence point and common fixed point theorems for self-mappings in a general class of contractions defined by an implicit relation. In this work, in the setting of partial metric spaces, we study coincidence point and common fixed point theorems for two self-mappings satisfying generalized contractive conditions, defined by implicit relations. Our results unify, extend and generalize some related common fixed point theorems of the literature.

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Keywords

• Coincidence point
• common fixed point
• contraction
• implicit relation
• partial metric space.

MSC

•  47H10
•  54H25

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