Remarks on Caristi’s fixed point theorem
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Zhilong Li
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Article
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2010
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Elsevier Science
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English
⚖ 238 KB
Without assumptions on the continuity and the subadditivity of η, by means of Caristi's fixed point theorem, we investigated the existence of fixed points for a Caristi type mapping which partially answered Kirk's problem and improved Caristi's fixed point theorem, Jachymski's fixed point theorem an