Extended Fuzzy Metrics and Fixed Point Theorems
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DOI: 10.3390/math7030303
Abstract: In this paper, we study those fuzzy metrics M on X, in the George and Veeramani’s sense, such that ⋀ t > 0 M ( x , y , t ) > 0 . The… read more here.
Keywords: metrics fixed; fixed point; point theorems; extended fuzzy ... See more keywords
On Extended Representable Uninorms and Their Extended Fuzzy Implications (Coimplications)
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DOI: 10.3390/sym9080160
Abstract: In this work, by Zadeh’s extension principle, we extend representable uninorms and their fuzzy implications (coimplications) to type-2 fuzzy sets. Emphatically, we investigate in which algebras of fuzzy truth values the extended operations are type-2… read more here.
Keywords: implications coimplications; fuzzy implications; extended representable; extended fuzzy ... See more keywords