Quadrupled fixed point results in abstract metric spaces
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Abstract
In this paper we consider some new definitions about quadrupled fixed point in abstract metric spaces and obtain some new fixed point results in this field. These results unify, extend and generalize well-known comparable results in the existing literature. We also provide some examples and applications to support our results.
Keywords
Abstract metric space Quadrupled fixed point T-contraction Quadrupled coincidence point Common quadrupled fixed point W-compatible mappingMathematics Subject Classification (2000)
47H10 54H25 46J10 34A34Notes
Acknowledgments
The authors are grateful to the associate editor and two referees for their accurate reading and their helpful suggestions. Also, the first and the third authors would like to thank the Young Researchers and Elite club, Central Tehran Branch of Islamic Azad University, for financial support.
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