Caristi, Nadler and H + -Type Contractive Mappings and Their Fixed Points in θ-Metric Spaces

Autor: Stojan Radenović, Jelena Vujaković, Deepesh Kumar Patel, Pradip Ramesh Patle
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Symmetry
Volume 11
Issue 4
ISSN: 2073-8994
DOI: 10.3390/sym11040504
Popis: A new proper generalization of metric called as &theta
metric is introduced by Khojasteh et al. (Mathematical Problems in Engineering (2013) Article ID 504609). In this paper, first we prove the Caristi type fixed point theorem in an alternative and comparatively new way in the context of &theta
metric. We also investigate two &theta
metrics on CB ( X ) (family of nonempty closed and bounded subsets of a set X). Furthermore, using the obtained &theta
metrics on CB ( X ) , we prove two new fixed point results for multi-functions which generalize the results of Nadler and Lim type in the context of such spaces. In order to illustrate the usability of our results, we equipped them with competent examples.
Databáze: OpenAIRE
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