Fuzzy n−Controlled Metric Space

Salman Furqan, Naeem Saleem*, Salvatore Sessa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This manuscript consists of the idea of n−controlled metric space in fuzzy set theory to generalize a number of fuzzy metric spaces in the literature, for example, pentagonal, hexagonal, triple, and double controlled metric spaces and many other spaces in fuzzy environment. Various examples are given to explain definitions and results. We define open ball, convergence of a sequence and a Cauchy sequence in the context of fuzzy n−controlled metric space. We also prove, by means of an example, that a fuzzy n−controlled metric space is not Hausdorff. At the end of the article, an application is given to prove the uniqueness of the solution to fractional differential equations.

Original languageEnglish
Article number101
JournalInternational Journal of Analysis and Applications
Publication statusPublished - 2023
Externally publishedYes


  • controlled metric space
  • fixed point
  • fractional differential equation
  • fuzzy metric space


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