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Listar por palabra clave "Metric space"

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Listar por palabra clave "Metric space"

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    A Discussion on p-Geraghty Contraction on mw-Quasi-Metric Spaces 
    Alegre Gil, Maria Carmen; Fulga, Andreea; Karapinar, Erdal; Tirado Peláez, Pedro (MDPI AG, 2020-09)
    [EN] In this paper we consider a kind of Geraghty contractions by using mw-distances in the setting of complete quasi-metric spaces. We provide fixed point theorems for this type of mappings and illustrate with some examples ...
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    Best proximity points of contractive mappings on a metric space with a graph and applications 
    Sultana, Asrifa; Vetrivel, V. (Universitat Politècnica de València, 2017-04-03)
    [EN] We establish an existence and uniqueness theorem on best proximity point for contractive mappings on a metric space endowed with a graph. As an application of this theorem, we obtain a result on the existence of unique ...
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    EXTENSION OF LIPSCHITZ-TYPE OPERATORS ON BANACH FUNCTION SPACES 
    Cavalcante, Wasthenny, V.; Rueda, Pilar; Sánchez Pérez, Enrique Alfonso (Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University, 2021-03)
    [EN] We study extension theorems for Lipschitz-type operators acting on metric spaces and with values on spaces of integrable functions. Pointwise domination is not a natural feature of such spaces, and so almost everywhere ...
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    Fixed point results concerning α-F-contraction mappings in metric spaces 
    Dey, Lakshmi Kanta; Kumam, Poom; Senapati, Tanusri (Universitat Politècnica de València, 2019-04-01)
    [EN] In this paper, we introduce the notions of generalized α-F-contraction and modified generalized α-F-contraction. Then, we present sufficient conditions for existence and uniqueness of fixed points for the above kind ...
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    Fixed point results for cyclic contraction satisfying generalized altering distances and application 
    Nashine, Hemant Kumar; Romaguera Bonilla, Salvador (2014)
    A sufficient condition for the existence and uniqueness of fixed point for a new variant of cyclic contractive mapping, named as weakly cyclic contractive mappings, involving a generalized altering distance function in ...
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    Fixed points results for various types of interpolative cyclic contraction 
    Edraoui, Mohamed; El koufi, Amine; Semami, Soukaina (Universitat Politècnica de València, 2023-10-02)
    [EN] In this paper, we introduce four new types of contractions called in this order Kannan-type cyclic contraction via interpolation, interpolative Ćirić-Reich-Rus type cyclic contraction, and we prove the existence and ...
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    Mathematical models of denotational semantics 
    Clement, Collin (Universitat Politècnica de València, 2024-09-10)
    [ES] La semántica denotacional es una rama de la Ciencia de la Computación dedicada a dotar de significado a los lenguajes de programación mediante el diseño de objectos matemáticos (denominados denotaciones o dominios ...
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    Measure-Based Extension of Continuous Functions and p-Average-Slope-Minimizing Regression 
    Arnau-Notari, Andres Roger; Calabuig, J. M.; Sánchez Pérez, Enrique Alfonso (MDPI AG, 2023-04-07)
    [EN] This work is inspired by some recent developments on the extension of Lipschitz real functions based on the minimization of the maximum value of the slopes of a reference set for this function. We propose a new method ...
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    Metric spaces and textures 
    Dost, Senol (Universitat Politècnica de València, 2017-04-03)
    [EN] Textures are point-set setting for fuzzy sets, and they provide a framework for the complement-free mathematical concepts. Further dimetric on textures is a gener- alization of classical metric spaces. The aim of this ...
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    On interpolative Hardy-Rogers type cyclic contractions 
    Edraoui, Mohamed; El koufi, Amine; Aamri, Mohamed (Universitat Politècnica de València, 2024-04-02)
    [EN] Recently, Karapinar introduced a new Hardy-Rogers type contractive mapping using the concept of interpolation and proved a fixed point theorem in complete metric space. This new type of mapping, called "interpolative ...
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    Optimal extensions of Lipschitz maps on metric spaces of measurable functions 
    Rueda, Pilar; Sánchez Pérez, Enrique Alfonso (Elsevier, 2024-01-15)
    [EN] We prove a factorization theorem for Lipschitz operators acting on certain subsets of metric spaces of measurable functions and with values on general metric spaces. Our results show how a Lipschitz operator can be ...
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    Presymmetric w-Distances on Metric Spaces 
    Romaguera Bonilla, Salvador; Tirado Peláez, Pedro (MDPI AG, 2024-01)
    [EN] In an outstanding article published in 2008, Suzuki obtained a nice generalization of the Banach contraction principle, from which a characterization of metric completeness was derived. Although Suzuki's theorem has ...
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    Remarks on fixed point assertions in digital topology 
    Boxer, Laurence; Staecker, P. Christopher (Universitat Politècnica de València, 2019-04-01)
    [EN] Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces and homotopy invariant fixed point theory. We ...
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    Remarks on fixed point assertions in digital topology, 2 
    Boxer, Laurence (Universitat Politècnica de València, 2019-04-01)
    [EN] Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces. We show that in many cases, researchers using ...
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    Remarks on fixed point assertions in digital topology, 3 
    Boxer, Laurence (Universitat Politècnica de València, 2019-10-01)
    [EN] We continue the work of [5] and [3], in which are considered papers in the literature that discuss fixed point assertions in digital topology. We discuss published assertions that are incorrect or incorrectly proven; ...
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    Remarks on fixed point assertions in digital topology, 4 
    Boxer, Laurence (Universitat Politècnica de València, 2020-10-01)
    [EN] We continue the work of [4, 2, 3], in which we discuss published assertions that are incorrect or incorrectly proven; that are severely limited or reduce to triviality; or that we improve upon.
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    Remarks on fixed point assertions in digital topology, 5 
    Boxer, Laurence (Universitat Politècnica de València, 2022-10-03)
    [EN] As in [6, 3, 4, 5], we discuss published assertions concerning fixed points in digital metric spaces - assertions that are incorrect or incorrectly proven, or reduce to triviality.
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    Remarks on fixed point assertions in digital topology, 6 
    Boxer, Laurence (Universitat Politècnica de València, 2023-10-02)
    [EN] This paper continues a series discussing flaws in published assertions concerning fixed points in digital metric spaces.
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    Remarks on fixed point assertions in digital topology, 7 
    Boxer, Laurence (Universitat Politècnica de València, 2024-04-02)
    [EN] This paper continues a series discussing flaws in published assertions concerning fixed points in digital images.
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    Representation of Lipschitz Maps and Metric Coordinate Systems 
    Arnau-Notari, Andres Roger; Calabuig, J. M.; Sánchez Pérez, Enrique Alfonso (MDPI AG, 2022-10)
    [EN] Here, we prove some general results that allow us to ensure that specific representations (as well as extensions) of certain Lipschitz operators exist, provided we have some additional information about the underlying ...