Suddhasattwa Das

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Given a d-dimensional torus map F (z) = Mz + G(z) mod 1, where M is an integer-matrix and and G is a periodic function, we find conditions on M under which F is semi-conjugate to a linear torus map, independently of G. We also find a conditions G under which these semi-conjugacies can be turned into conjugacies. These conditions are satisfied by open sets(More)
The paper attempts to improve the accuracy of a fuzzy expert decision making system by tuning the parameters of type-2 sigmoid membership functions of fuzzy input variables and hence determining the most appropriate type-1 membership function. The current work mathematically models the variability of human decision making process using type-2 fuzzy sets.(More)
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