DOI: 10.53570/jnt.1919557 ISSN: 2149-1402

Norm-Compatible Fuzzy Subrings and Quotient Rings

Aykut Emniyet
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In the study of fuzzy normed rings, classical frameworks frequently employ idempotent t-norms and t-conorms to govern the underlying algebraic operations. This paper investigates norm-induced fuzzy structures, in which the membership degree is defined by a strictly decreasing and continuous function of the underlying seminorm, and demonstrates an algebraic incompatibility. We prove that the direct application of idempotent operators limits the entire structure to bounded elements within the unit ball. This topological collapse prohibits the multiplicative norm expansion required to model unbounded systems, such as general polynomial or matrix rings. To address this, we introduce a norm-compatibility condition based on strict Archimedean t-norms. Building on this foundation, we construct the fuzzy quotient norm using norm-induced subrings and prove the First Isomorphism Theorem for fuzzy normed rings, thereby establishing that the isometric isomorphism holds without restricting the metric properties of the base ring.

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