New Operators Using Pythagorean Fuzzy Open Sets

In this chapter, some new operators called pf (resp. pfδ, pfδP,pfδS,pfδα and pfδβ) frontier respective border and exterior with the help of pfos (resp. pfδos, pfδPos,pfδSos,pfδαos and pfδβos)’s in Pythagorean fuzzy topological spaces are introduced. Further, the important properties are discussed with examples. Also, Pythagorean fuzzy set is portrayed by membership and non-membership, more forceful to seize indeterminacy. Here we applied one similarity measures for decision making problem in Industry, and given solution for employee assignment for the project.