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Pythagorean Fuzzy Digraphs and Its Application in Healthcare Center

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  • Mani Parimala
  • Arwa Almunajam
  • Muthusamy Karthika
  • Ibtesam Alshammari
  • Basil Papadopoulos

Abstract

The notion of fuzzy set is introduced to deal with uncertainty, whereas the conventional sets are used for certainty. The extensions of fuzzy set theory such as intuitionistic fuzzy set (IFS) and Pythagorean fuzzy sets (PyFS) were introduced to overcome drawbacks in fuzzy theory. Fuzzy graph structure is used to deal with the uncertainty in a network and describe its relation on the nonempty vertex set. One of the extensions of intuitionistic fuzzy digraph (IFDG) is Pythagorean fuzzy digraph (PyFDG). IFDG cannot handle if the sum of degree of acceptance and degree of rejection for an arc weight exceeds 1. So, we introduced PyFDG to overcome the limitations in IFDG and it deals with the imprecise arc weight involving degree of acceptance and degree of rejection. Pythagorean fuzzy digraph (PyFDG) and its basic operations and score function of PyFDG are defined in this paper. Algorithm is proposed to solve application problem in healthcare center.

Suggested Citation

  • Mani Parimala & Arwa Almunajam & Muthusamy Karthika & Ibtesam Alshammari & Basil Papadopoulos, 2021. "Pythagorean Fuzzy Digraphs and Its Application in Healthcare Center," Journal of Mathematics, Hindawi, vol. 2021, pages 1-6, September.
    • Handle: RePEc:hin:jjmath:5459654
    DOI: 10.1155/2021/5459654
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