Some remarks on ‘Multidimensional fixed point theorems for isotone mappings in partially ordered metric spaces’
Ravi P. Agarwal, Erdal Karapınar, Antonio-Francisco Roldán-López-de-Hierro
Abstract
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Ravi P. Agarwal, Erdal Karapınar, Antonio-Francisco Roldán-López-de-Hierro
Abstract
Open-access reader
Abstract The main aim of this paper is to advise researchers in the field of Fixed Point Theory against an extended mistake that can be found in some proofs. We illustrate our claim proving that theorems in the very recent paper (Wang in Fixed Point Theory Appl. 2014:137, 2014) are incorrect, and we provide different corrected versions of them.
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Abstract The main aim of this paper is to advise researchers in the field of Fixed Point Theory against an extended mistake that can be found in some proofs. We illustrate our claim proving that theorems in the very recent paper (Wang in Fixed Point Theory Appl. 2014:137, 2014) are incorrect, and we provide different corrected versions of them.
Key concepts: Mathematical proof, Fixed-point theorem, Mistake, Mathematics, Fixed point, Metric space, Differential geometry, Coincidence point