Results 191 to 200 of about 1,585 (210)

Characterizing completable fuzzy metric spaces

Fuzzy Sets and Systems, 2004
The work deals with the separation of points in intuitionistic fuzzy topological spaces (IFTS). The Hausdorfness of an IFTS is described in terms of convergence of nets. It is shown that an IFTS is \(T_2\) if and only if each convergent intuitionistic fuzzy net has a unique limit.
Valentín Gregori, Salvador Romaguera
openaire   +1 more source

On a class of completable fuzzy metric spaces

Fuzzy Sets and Systems, 2010
The authors investigate fuzzy metric spaces [\textit{A. George} and \textit{P. Veeramani}, ibid. 64, No.~3, 395--399 (1994; Zbl 0843.54014)]. Inter alia they characterize a strong fuzzy metric by a family of stationary fuzzy metrics and show that stationary fuzzy metrics with integral \(t\)-norm and stationary fuzzy ultrametrics (but not fuzzy ...
Valentín Gregori, Samuel Morillas, Almanzor Sapena   +2 more
openaire   +2 more sources

Complete invariant fuzzy metrics on groups

Fuzzy Sets and Systems, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Iván Sánchez, Manuel Sanchis
openaire   +1 more source

Regularity of fuzzy measures on complete and separable metric spaces

Journal of Intelligent & Fuzzy Systems, 2016
The regularity of continuous fuzzy measures on complete separable metric spaces are discussed. It is shown that a finite continuous fuzzy measure is tight on complete and separable metric spaces, and if the fuzzy measure is weakly null-additive, then it is regular.
Shan Cao 0005, Yuhuan Wang, Jun Li
openaire   +2 more sources

Some complete metrics on spaces of fuzzy subsets

Fuzzy Sets and Systems, 2002
Completions of the \(L_p\)-metrics as well as of the \(L_{p,\infty}\)-metrics, restricted to the space of normal, bounded, convex, compact fuzzy subsets of \(\mathbb R^k\) are studied.
openaire   +2 more sources

Fixed point theorems for fuzzy mappings in complete metric spaces

Fuzzy Sets and Systems, 2002
The authors prove that many fixed point theorems existing in the literature for set-valued mappings and fuzzy mappings are derived from their results, in which such mappings have suitable metric properties.
Wataru Takahashi, Masato Amemiya
openaire   +2 more sources

Regularity of fuzzy measures on complete and separable metric spaces

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD), 2015
We shall study the regularity of continuous monotone non-additive measures defined on complete separable metric spaces. We prove that a finite continuous non-additive measures is tight, and furthermore, if it is weakly null-additive, then it possesses regularity.
openaire   +1 more source

On compactness and G-completeness in fuzzy metric spaces

2012
The author acknowledges the support of the Universidad Politecnica de Valencia under grant PAID-00-2010, and the support of the Spanish Ministry of Science and Innovation under grant MTM2009-12872-C02-01.
openaire   +2 more sources

Fuzzy contractions of Suzuki type and a characterization of fuzzy metric completeness

2022
[EN] In this note we introduce a class of fuzzy contractions of Suzuki type from which a fixed point theorem is proved. As a product of our approach, a characterization of a large class of complete fuzzy metric spaces is obtained.
openaire   +1 more source

WITHDRAWN: On completion of intuitionistic fuzzy metric spaces

Chaos, Solitons & Fractals, 2006
Cihangir Alaca, Hakan Efe, Cemil Yildiz
openaire   +1 more source