Complex Fermatean fuzzy extended TOPSIS method and its applications in decision making

The fuzzy set has its own limitations due to the membership function only. does not describe negative aspects of an object. Fermatean covers complex is most effective tool for handling ambiguous and uncertain information. aim this research work develop new techniques decision-making based on numbers. First, we construct different aggregation operators numbers, using Einstein t-norms. We define a series named weighted average (CFFEWAA), ordered (CFFEOWAA), hybrid (CFFEHAA). fundamental properties proposed are discussed here. applied technique with help score functions. also algorithms operators. extended TOPSIS method described problem. apply MAGDM problem “selection English language instructor”. compare models existing models.