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Listar por palabra clave "Fuzzy metric space"

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Listar por palabra clave "Fuzzy metric space"

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    A Banach contraction principle in fuzzy metric spaces defined by means of t-conorms 
    Gregori Gregori, Valentín; Miñana, Juan-José (Springer-Verlag, 2021-07)
    [EN] Fixed point theory in fuzzy metric spaces has grown to become an intensive field of research. The difficulty of demonstrating a fixed point theorem in such kind of spaces makes the authors to demand extra conditions ...
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    A characterization of p-complete fuzzy metric spaces 
    Gregori Gregori, Valentín; Miñana, Juan-José; Roig, Bernardino; Sapena Piera, Almanzor (Elsevier, 2022-09-10)
    [EN] George and Veeramani characterized complete fuzzy metric spaces ¿ by means of nested sequences of closed sets of X which have fuzzy diameter zero. According to the concept of p-convergence due to D. Mihet, an appropriate ...
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    A domain-theoretic approach to fuzzy metric spaces 
    Ricarte Moreno, Luis Alberto; Romaguera Bonilla, Salvador (Elsevier, 2014-02)
    We introduce a partial order (sic)(M) on the set BX of formal balls of a fuzzy metric space (X, M, Lambda) in the sense of Kramosil and Michalek, and discuss some of its properties. We also characterize when the poset (BX, ...
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    A fixed point theorem of Kannan type that characterizes fuzzy metric completeness 
    Romaguera Bonilla, Salvador (National Library of Serbia, 2020)
    [EN] We obtain a fixed point theorem for complete fuzzy metric spaces, in the sense of Kramosiland Michalek, that extends the classical Kannan fixed point theorem. We also show that, in fact, ourtheorem ...
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    A note on convergence in fuzzy metric spaces 
    Gregori Gregori, Valentín; Miñana, Juan-José; Morillas, Samuel (University of Sistan and Baluchestan, 2014-08)
    [EN] The sequential p-convergence in a fuzzy metric space, in the sense of George and Veeramani, was introduced by D. Mihet as a weaker concept than convergence. Here we introduce a stronger concept called s-convergence, ...
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    A technique for fuzzifying metric spaces via metric preserving mappings 
    Gregori Gregori, Valentín; Miñana, Juan-José; Valero Sierra, Óscar (Elsevier, 2018)
    [EN] In this paper we develop a new technique for constructing fuzzy metric spaces, in the sense of George and Veeramani, from metric spaces and by means of the Lukasievicz t-norm. In particular such a technique is based ...
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    Characterizing a class of completable fuzzy metric spaces 
    Gregori Gregori, Valentín; Miñana, Juan José; Morillas, Samuel; Sapena Piera, Almanzor (Elsevier, 2016-04-15)
    In this paper we give a characterization of the class of completable strong (non-Archimedean) fuzzy metric spaces, in the sense of George and Veeramani.
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    Characterizing Complete Fuzzy Metric Spaces Via Fixed Point Results 
    Romaguera Bonilla, Salvador; Tirado Peláez, Pedro (MDPI AG, 2020-02)
    [EN] With the help of C-contractions having a fixed point, we obtain a characterization of complete fuzzy metric spaces, in the sense of Kramosil and Michalek, that extends the classical theorem of H. Hu (see "Am. Math. ...
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    Common fixed point theorems on complete and weak G-complete fuzzy metric spaces 
    Adhya, Sugata; Deb Ray, A. (Universitat Politècnica de València, 2024-04-02)
    [EN] Motivated by Gopal and Vetro, we introduce a symmetric pair of ?-admissible mappings and obtain common fixed point theorems for such a pair in complete and weak G-complete fuzzy metric spaces. In particular, we ...
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    Completable fuzzy metric spaces 
    Gregori Gregori, Valentín; Miñana, Juan-José; Sapena Piera, Almanzor (Elsevier, 2017)
    [EN] In the context of fuzzy metrics in the sense of George and Veeramani, we introduce the concept of stratified fuzzy metric. Many well-known fuzzy metrics are stratified. We prove that stratified strong fuzzy metric ...
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    Contractive sequences in fuzzy metric spaces 
    Gregori Gregori, Valentín; Miñana, Juan-José; Miravet-Fortuño, David (Elsevier, 2020-01-15)
    [EN] In this paper we present an example of a fuzzy psi-contractive sequence in the sense of D. Mihet, which is not Cauchy in a fuzzy metric space in the sense of George and Veeramani. To overcome this drawback we introduce ...
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    Examples of non-strong fuzzy metrics 
    Gutiérrez García, J.; Romaguera Bonilla, Salvador (Elsevier, 2011-01)
    Answering a recent question posed by Gregori et al. [On a class of completable fuzzy metric spaces, Fuzzy Sets and Systems 161 (2010), 2193-2205] we present two examples of non-strong fuzzy metrics (in the sense of George ...
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    Fixed points for fuzzy quasi-contractions in fuzzy metric spaces endowed with a graph 
    Dinarvand, Mina (Universitat Politècnica de València, 2020-10-01)
    [EN] In this paper, we introduce the notion of G-fuzzy H-quasi-contractions using directed graphs in the setting of fuzzy metric spaces endowed with a graph and we show that this new type of contraction generalizes a large ...
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    Fuzzy contractions of Suzuki type and a characterization of fuzzy metric completeness 
    Romaguera Bonilla, Salvador (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.
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    Fuzzy contractive sequences 
    Gregori Gregori, Valentín; Sapena Piera, Almanzor (Editorial Universitat Politècnica de València, 2017-10-23)
    [EN] In this paper we survey some results on contractive sequences in fuzzy metric spaces in the sense of George and Veeramani.
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    Fuzzy metric spaces and applications to perceptual colour-differences 
    Miñana Prats, Juan José (Universitat Politècnica de València, 2015-05-21)
    [EN] Fuzzy mathematics has constituted a wide field of research, since L. A. Zadeh introduced in 1965 the concept of fuzzy set. In particular, the problem of constructing a satisfactory theory of fuzzy metric spaces has ...
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    Fuzzy Partial Metric Spaces 
    Gregori Gregori, Valentín; Miñana, Juan-José; Miravet-Fortuño, David (Taylor & Francis, 2018-12)
    [EN] In this paper we provide a concept of fuzzy partial metric space (X, P, ¿) as an extension to fuzzy setting in the sense of Kramosil and Michalek, of the concept of partial metric due to Matthews. This extension has ...
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    Image Noise Reduction by Means of Bootstrapping-Based Fuzzy Numbers 
    Ghasemi, Reza; Morillas, Samuel; Nezakati, Ahmad; Rabiei, Mohammadreza (MDPI AG, 2022-10)
    [EN] Removing or reducing noise in color images is one of the most important functions of image processing, which is used in many sciences. In many cases, nonlinear methods significantly reduce the noise in the image and ...
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    Multivalued Caristi's type mappings in fuzzy metric spaces and a characterization of fuzzy metric completeness 
    Abbas, Mujahid; Ali, Basit; Romaguera Bonilla, Salvador (UNIV NIS, FAC SCI MATH, PO BOX 224, VISEGRADSKA 33, NIS, 18000, SERBIA MONTENEG, 2015)
    In this note we show a fixed point theorem for multivalued Caristi's type mappings on a large class of complete fuzzy metric spaces. In fact, this result allows us to characterize complete fuzzy metric spaces with continuous ...
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    On compactness and G-completeness in fuzzy metric spaces 
    Tirado Peláez, Pedro (University of Sistan and Baluchestan, 2012-11)
    [EN] In [Fuzzy Sets and Systems 27 (1988) 385-389], M. Grabiec introduced a notion of completeness for fuzzy metric spaces (in the sense of Kramosil and Michalek) that successfully used to obtain a fuzzy version of Banach´s ...