Bipolar Fuzzy Algebraic Structures: Theory, Isomorphisms, and Decision-Making Applications
Keywords:
Bipolar fuzzy set, Abstract algebra, Bipolar fuzzy group, Bipolar fuzzy semiring, Dombi aggregation operator, multi-criteria decision making (MCDM), Fuzzy homomorphism, Isomorphism theorems, Fuzzy Decision MatrixAbstract
This research presents a comprehensive study of bipolar fuzzy algebraic structures, an emerging field at the intersection of classical abstract algebra and bipolar fuzzy set theory. Unlike traditional fuzzy sets operating in [0,1], bipolar fuzzy sets operate in [-1,1], capturing both positive membership (satisfaction degree) and negative membership (satisfaction degree of the counter-property). This research develops a unified framework for bipolar fuzzy groups and bipolar fuzzy semirings, establishes fundamental isomorphism theorems, introduces novel aggregation operators based on Dombi operations, and presents practical applications in multi-criteria decision-making (MCDM). All results are aligned with the latest developments published in 2024-2025.

