Abstract
In this paper, we study the existence and uniqueness of coincidence and common fixed point of a set-valued and a single-valued mapping satisfying generalized set-valued Prešić–Reich type contractive condition in ultrametric spaces without the property of completeness. As an application, the well-posedness of a common fixed point problem is proved. An example is given to illustrate our results. Our results generalize and extend the results of Prešić–Reich in the context of ultrametric spaces.
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Kumar, D.R., Pitchaimani, M. A generalization of set-valued Prešić–Reich type contractions in ultrametric spaces with applications. J. Fixed Point Theory Appl. 19, 1871–1887 (2017). https://doi.org/10.1007/s11784-016-0338-4
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DOI: https://doi.org/10.1007/s11784-016-0338-4
Keywords
- Prešić–Reich type mapping
- set-valued mapping
- common fixed point
- coincidence value
- well-posedness
- ultrametric space