Generalized metric spaces: A survey

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Banach’s contraction mapping principle is remarkable in its simplicity, yet it is perhaps the most widely applied fixed point theorem in all of analysis with special applications to the theory of differential and integral equations. Because the underlined space of this theorem is a metric space, the theory that developed following its publication is known as the metric fixed point theory. Over the last one hundred years, many people have tried to generalize the definition of a metric space. In this paper, we survey the most popular generalizations and we discuss the recent uptick in some generalizations and their impact in metric fixed point theory.

Original languageBritish English
Pages (from-to)455-475
Number of pages21
JournalJournal of Fixed Point Theory and Applications
Issue number3
StatePublished - 1 Sep 2015


  • 47E10
  • 47H10
  • Primary 47H09
  • Secondary 46B20


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