Some methods for finding multiplicative inverse of fuzzy and intuitionistic fuzzy matrices.

Abstract

In this thesis, an existing method to find multiplicative inverse of fuzzy matrices (matrices whose elements are triangular fuzzy numbers) is presented as well as the flaws of this method are pointed out. Also, another existing method which was proposed to resolve these flaws, is presented. Furthermore, a new method to find multiplicative inverse of symmetric intuitionistic fuzzy matrices (matrices whose elements are symmetric triangular intuitionistic fuzzy numbers) as well as a new method to find multiplicative inverse of non-symmetric intuitionistic fuzzy matrices (matrices whose elements are non-symmetric triangular intuitionistic fuzzy numbers) are proposed.