Some properties of T-independent fuzzy variables

Authors:
Shuming Wang;Junzo Watada
Affiliations:
-;-
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
2011

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Abstract

T-independence of fuzzy variables is a more general concept than the classical independence. The objective of this study is to deal with some new properties of T-independent fuzzy variables. First of all, for any general t-norm, some criteria of T-independence are discussed for fuzzy variables under possibility, necessity and credibility measures. Subsequently, on the basis of left continuous t-norms, some formulas are derived on the ''max'' and ''min'' operations of the T-independent fuzzy variables in possibility distribution and in expectation. Finally, making use of continuous Archimedean t-norms, several convergence properties are discussed for T-independent fuzzy variables in credibility and in expectation, respectively, and some laws of large numbers are proved as well.