Fuzzy arithmetic with product t-norm

Document Type : Research Paper

Authors

Department of Mathematics, Faculty of Science, Akdeniz University, Antalya, Turkey

Abstract

Fuzzy arithmetic performed with the product t-norm is the focus of this paper. The subject is handled from both practical and theoretical perspectives. Explicit formulas for product-sum and product-multiplication of triangular fuzzy numbers are obtained. These formulas can effectively replace the computational methods proposed so far. The issue that these operations are not shape preserving is solved by the presentation of appropriate approximations. Finally, the product arithmetic is compared in detail to the arithmetic performed with the boundary t-norms, namely the minimum and drastic sum.

Keywords

Iranian Journal of Fuzzy Systems
Volume 18, Issue 6
November and December 2021
Pages 185-197

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