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Rodríguez-López, Jesús; Romaguera, Salvador

The Hausdorff fuzzy metric on compact sets. (English) Zbl 1069.54009

Fuzzy Sets Syst. 147, No. 2, 273-283 (2004).
According to [A. George and P. Veeramani, Fuzzy Sets Syst. 64, 395–399 (1994; Zbl 0843.54014)], a fuzzy metric space is a triple \((X,M,*)\) where \(X\) is a set, \(*\) is a continuous \(t\)-norm and the fuzzy metric \(M\) is a mapping \(M: X\times X\times (0,\infty) \to [0,1]\) satisfying certain conditions. In the same paper the authors showed how this metric induces a topology \(\tau_M\) on the set \(X\).
The authors of this paper define a fuzzy metric \(H_M\) on the set \(K(X)\) of all nonempty compact subsets of \((X,\tau_M)\), that is actually a fuzzy set \(H_M: K(X)\times K(X)\times (0,\infty) \to [0,1]\) which is a fuzzy analogue of the Hausdorff-Bourbaki metric, and study some properties of the corresponding space: such as completeness, completion and precompactness. A typical result states that the space is \((X,M,*)\) is precompact iff the space \((K(X),H_M,*)\) is precompact. Some examples are given. Possible applications of the obtained results are discussed.
Reviewer: Alexander Šostak (Riga)

Cited in 1 Review
Cited in 87 Documents

MSC:

54A40 Fuzzy topology
54E35 Metric spaces, metrizability
54B20 Hyperspaces in general topology

Keywords:

Hausdorff fuzzy metric; fuzzy metric; continuous \(t\)-norm; complete; precompact; completable

Citations:

Zbl 0843.54014
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\textit{J. Rodríguez-López} and \textit{S. Romaguera}, Fuzzy Sets Syst. 147, No. 2, 273--283 (2004; Zbl 1069.54009)
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