Dombi Aggregation Operators for p, qr–Spherica Fuzzy Sets: Application in the Stability Assessment of Cryptocurrencies

Abstract

This paper presents novel operational laws for 𝑝, 𝑞, 𝑟 −spherical fuzzy sets (𝑝, 𝑞, 𝑟 −SFSs) by harnessing the Dombi t-norm (DTN) and t-conorm (DTCN). These laws serve as the foundation for a set of aggregation operators (AOs) designed to consolidate 𝑝, 𝑞, 𝑟 −spherical fuzzy (𝑝, 𝑞, 𝑟 −SF) information. Additionally, a multi-criteria decision-making (MCDM) method is outlined for addressing practical decision-making (DM) challenges. To demonstrate the application of the proposed approach, a numerical example is offered. Furthermore, we conducted a comparative study to validate the efficacy of the suggested approach. Finally, we discuss both the advantages and limitations of this innovative approach.