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Academic literature on the topic 'Espacios de Lipschitz'
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Journal articles on the topic "Espacios de Lipschitz"
Papa Quiroz, Erik, and Segundo Cruzado Acu˜na. "Velocidad de convergencia de un algoritmo de punto proximal escalarizado inexacto para minimización multiobjetivo cuasi-convexa en espacios Euclidianos." Pesquimat 22, no. 2 (December 20, 2019): 1–14. http://dx.doi.org/10.15381/pesquimat.v22i2.17228.
Full textPapa Quiroz, Erik, and Segundo Cruzado Acuña. "Un método de punto proximal escalarizado inexacto para minimización multiobjetivo cuasi-convexa en espacios Euclidianos." Pesquimat 22, no. 1 (May 3, 2019): 31–50. http://dx.doi.org/10.15381/pes.v22i1.16125.
Full textCoulhon, Thierry. "Espaces de Lipschitz et inégalités de Poincaré." Journal of Functional Analysis 136, no. 1 (February 1996): 81–113. http://dx.doi.org/10.1006/jfan.1996.0022.
Full textParedes Soria, Leopoldo, and Pedro Canales García. "UNA NUEVA FORMA DEL TEOREMA DE KANTOROVICH PARA EL ME´ TODO DE NEWTON." Revista Cientifica TECNIA 23, no. 1 (March 13, 2017): 79. http://dx.doi.org/10.21754/tecnia.v23i1.69.
Full textEl Kadiri, Mohamed, and Sabah Haddad. "Remarques sur la frontière de martin biharmonique et la représentation intégrale des fonctions biharmoniques." International Journal of Mathematics and Mathematical Sciences 2005, no. 9 (2005): 1461–72. http://dx.doi.org/10.1155/ijmms.2005.1461.
Full textMoya Lázaro, Nancy, Martha O. Gonzales Bohorquez, Félix Pariona Vilca, Nelly Pillhuamán Caña, Jacinto Mendoza Solís, and Luis Núnez Ramirez. "Existencia de solución local y global de la ecuación reacción difusión, con no linealidades con parte principal monótona." Pesquimat 17, no. 2 (September 24, 2016). http://dx.doi.org/10.15381/pes.v17i2.12498.
Full textGonzáles Bohórquez, Martha. "CONJUGACIÓN TOPOLÓGICA DE DIFEOMORFISMOS." Pesquimat 4, no. 1 (September 16, 2014). http://dx.doi.org/10.15381/pes.v4i1.9269.
Full textBalcázar Huapaya, Claudio Fernando, and Maruja Yolanda Gavilán Gonzales. "FUNCIONES GENERALIZADAS DE FRONTERA." Pesquimat 15, no. 2 (September 16, 2014). http://dx.doi.org/10.15381/pes.v15i2.9608.
Full textDissertations / Theses on the topic "Espacios de Lipschitz"
Flores, García Gonzalo Patricio. "Estudio de los espacios Lipschitz-libres y una caracterización para el caso finito-dimensional." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/141350.
Full textEn el presente trabajo se muestran algunos resultados obtenidos recientemente en ciertos espacios de Banach, los llamados espacios Lipschitz-libres. Junto con las definiciones básicas y resultados que principalmente se encuentran en \cite{GK} y \cite{K}, se añaden resultados presentes en diversos artículos y trabajos publicados. Así mismo, se incluye una introducción a los conceptos de integración de funciones vector-valuadas, más precisamente, la noción de Bochner-integrabilidad, la cual resulta ser un punto clave en el desarrollo del resultado principal. Se muestra dentro de estos resultados una identificación que puede ser hallada, por ejemplo, en \cite{W} para el espacio Lipschitz-libre $\mathcal{F}(\R)$. En virtud de esto, se propone una generalización para el caso finito-dimensional, con el fin de entregar una nueva herramienta para el estudio de los espacios Lipschitz-libres en el caso mencionado. En el transcurso de la identificación de este espacio, se hace uso de herramientas clásicas de espacios de Banach y de teoría de la medida. Además, se define el espacio de funciones esencialmente Lipschitz, así como un subespacio de éste que refleja la estructura de las funciones Lipschitz nulas en $0$. Haciendo uso del espacio obtenido, se propone una vía de estudio para los espacios $\mathcal{F}(\ell^{p})$, para $1\leq p < +\infty$, usando para ello la densidad de $c_{00}$ en $\ell^{p}$ y la estructura de los espacios que identifican a $\mathcal{F}(\R^{n})$. Se incluye por completitud además en el anexo una demostración de un resultado clásico asociado a las funciones Lipchitz definidas y a valores en espacios de dimensión finita, el Teorema de Rademacher. Éste último es la pieza clave en la identificación de $\mathcal{F}(\R)$ y así mismo se proponen posibles generalizaciones en la identificación de $\mathcal{F}(\R^{n})$ para espacios de dimensión infinita en los cuales existan resultados similares a dicho teorema.
Aliaga, Varea Ramón José. "Geometry and structure of Lipschitz-free spaces and their biduals." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/159256.
Full text[CA] Els espais lliures Lipschitz F(M) són linearitzacions canòniques d'espais mètrics M qualssevol. Més concretament, F(M) és l'únic espai de Banach que conté una còpia isomètrica de M que és linealment densa, i tal que tota aplicació Lipschitz de M en qualsevol espai de Banach X pot ser estesa a un operador lineal continu de F(M) en X. Aquests espais són una eina molt potent per a l'estudi de la geometria no lineal d'espais de Banach, ja que permeten l'aplicació de les tècniques lineals clàssiques, ben conegudes, a problemes no lineals. Però aquest esforç nomes val la pena si es disposa d'un coneixement bastant detallat de l'estructura de F(M). L'estudi sistemàtic dels espais lliures Lipschitz és bastant recent i, per això, aquest coneixement és encara prou limitat. Aquesta tesi s'emmarca en el programa general d'estudi de l'estructura dels espais lliures Lipschitz genèrics. Comencem el nostre estudi desenvolupant algunes eines bàsiques per a la teoria general d'espais lliures Lipschitz. Primer definim operadors de ponderació en espais Lipschitz i els fem servir per demostrar la conjectura de Weaver que tots els funcionals normals del bidual F(M)** son feble* continus. A continuació demostrem el teorema de la intersecció, que en essència diu que la intersecció d'espais lliures Lipschitz és de nou un espai lliure Lipschitz. Aquest resultat ens permet desenvolupar el concepte de suport d'un element de F(M), anàleg al de suport d'una mesura. A més, estenem l'ús d'aquestes eines al bidual F(M)** i les fem servir per establir una descomposició del bidual en espais de funcionals que estan "concentrats a l'infinit" i "separats de l'infinit", respectivament. Amb aquestes eines al nostre abast, emprenem l'estudi de dos aspectes concrets dels espais lliures Lipschitz. En primer lloc, analitzem la relació entre F(M) i els espais de mesures sobre M. En particular, obtenim caracteritzacions dels elements de F(M) que poden representar-se com la integració respecte a una mesura de Borel (no necessàriament finita) sobre M i viceversa, i provem que el suport coincideix amb el de la mesura associada. També identifiquem els espais mètrics M on tot element de F(M) pot ser representat com una mesura de Borel. Aquesta anàlisi es generalitza al bidual F(M)**, utilitzant en aquest cas mesures sobre la compactificació uniforme de M i arribant a resultats similars. També obtenim algunes conseqüències per als elements de F(M) i F(M)** que poden expressar-se com a diferència de dos elements positius, com ara l'existència d'un anàleg de la descomposició de Jordan per a mesures. En segon lloc, estudiem l'estructura extremal de la bola unitat de F(M) i fem algunes contribucions al programa general consistent en trobar caracteritzacions purament geomètriques de tots els seus elements extremals. Concretament, caracteritzem els punts extrems preservats de la bola, així com aquells punts extrems i exposats que tenen suport finit. A més fem una descripció completa de l'estructura extremal de la part positiva de la bola unitat. La teoria dels suports en F(M) desenvolupada anteriorment juga un paper crucial en les demostracions d'aquests resultats.
[EN] Lipschitz-free spaces F(M) are canonical linearizations of arbitrary complete metric spaces M. More specifically, F(M) is the unique Banach space that contains an isometric copy of M that is linearly dense, and such that any Lipschitz mapping from M into some Banach space X extends to a bounded linear operator from F(M) into X. Those spaces are a very powerful tool for studies of the nonlinear geometry of Banach spaces, as they allow the application of well-known classical linear techniques to nonlinear problems. But this effort is only worthwhile if we have sufficient knowledge about the structure of F(M). The systematic study of Lipschitz-free spaces is rather recent and so the current understanding of their structure is still quite limited. This thesis is framed within the general program of studying the structure of general Lipschitz-free spaces. We start our study by developing some basic tools for the general theory of Lipschitz-free spaces. First we introduce weighting operators and use them to solve Weaver's conjecture that all normal functionals in the bidual F(M)** are weak* continuous. Next we prove the intersection theorem, which essentially says that the intersection of Lipschitz-free spaces is again a Lipschitz-free space. That result allows us to develop the concept of support of an element of F(M), analogous to the support of a measure. Furthermore, we extend the use of these tools to the bidual F(M)** and apply them to establish a decomposition of the bidual into spaces of functionals that are "concentrated at infinity" and "separated from infinity", respectively. With these tools at our disposal, we undertake the study of two particular aspects of Lipschitz-free spaces. First we analyze the relationship between F(M) and spaces of measures on M. In particular, we obtain characterizations of those elements of F(M) that can be represented as integration against a (not necessarily finite) Borel measure on M and vice versa, and we show that their supports agree. We also identify those metric spaces such that every element of F(M) can be represented by a Borel measure. This analysis is generalized to the bidual F(M)**, using measures on the uniform compactification of M in that case and obtaining similar results. We also derive some consequences for those elements of F(M) and F(M)** that can be expressed as the difference between two positive elements, such as the existence of an analog of the Jordan decomposition for measures. Secondly, we study the extremal structure of the unit ball of F(M) and provide some contributions to the general program of finding purely geometric characterizations of all of its extremal elements. Namely, we characterize all of its preserved extreme points, and its extreme and exposed points of finite support. We also give a full description of the extremal structure of the positive unit ball. The theory of supports developed previously plays a crucial role in the proofs of these results
The author would like to thank Marek Cúth, Michal Doucha, Antonio José Guirao, Gilles Lancien and Eva Pernecká for their careful reading and correction of this document or parts of it. Some activities related to this thesis were partially supported by the Spanish Ministry of Economy, Industry and Competitiveness under Grant MTM2017-83262-C2-2-P, and by a travel grant of the Institute of Mathematics (IEMath-GR) of the University of Granada. Part of this research was conducted during visits to the Czech Technical University in Prague in 2018 and 2020, the Laboratoire de Mathématiques de Besançon in 2019, and the University of Granada in 2020. The author wishes to express his gratitude for the hospitality and the excellent working conditions during his visits.
Aliaga Varea, RJ. (2020). Geometry and structure of Lipschitz-free spaces and their biduals [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/159256
TESIS
Dubarbie, Fernández Luis. "Aplicaciones separadoras sobre espacios de funciones. Representación y continuidad automática." Doctoral thesis, Universidad de Cantabria, 2010. http://hdl.handle.net/10803/10701.
Full textIn this Thesis we deal with linear maps between subspaces of continuous functions defined on metric spaces and taking values in normed spaces. In particular, the Chapter 1 is devoted to study separating maps between spaces of absolutely continuous functions. In Chapter 2 we consider biseparating maps between Lipschitz function spaces. On the other hand, the isometries between spaces of Lipschitz functions are studied in Chapter 3 and, finally, we consider maps preserving common zeros between some subspaces of continuous functions, which include the subspaces given above.Therefore, our aim is providing some results about the representation of each linear map that we consider in this Thesis. Besides, the automatic continuity of biseparating maps and maps preserving common zeros is derived in some cases.
Dalet, Aude. "Etude des Espaces Lipschitz-libres." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2050/document.
Full textGodefroy and Ozawa have proved that there exists a compact space with a free space failing the approximation property. Then it is natural to ask what are the metric spaces whose freespace has the bounded approximation property. Grothendieck has proved that a separable Banach space with the approximation property has the metric approximation property. This result justifies why it is interesting to know whether a free space is a dual space. The first chapter is dedicated to duality. First we introduce a result to prove that a Banach space is a dual space, under some conditions. Then we explain how to use it in the context offree spaces and finally we apply it to countable or ultrametric proper metric spaces.In the second chapter, we study the metric approximation property of free spaces overcountable proper metric spaces.In the third chapter, ultrametric spaces are investigated. We prove first that the free spaceover a proper ultrametric space has the metric approximation property, is isomorphic to l1 andadmits a predual isomorphic to c0. Finally, in collaboration with P. Kaufmann et A. Proch`azka,we prove that the free space over a ultrametric space is never isometric to l1 and we generalizethis result to some subsets of separable R-trees
Netillard, François. "Plongements grossièrement Lipschitz et presque Lipschitz dans les espaces de Banach." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCD020/document.
Full textThe central theme of this thesis is the study of embeddings of metric spaces into Banach spaces.The first study focuses on the coarse Lipschitz embeddings between James Spaces Jp for p≻1 and p finite. We obtain that, for p,q different, Jq does not coarse Lipschitz embed into Jp. We also obtain, in the case where q≺p, that the compression exponent of Jq in Jp is lower or equal to q/p. Another natural question is to know whether we have similar results for the dual spaces of James spaces. We obtain that, for p,q different, Jp* does not coarse Lipschitz embed into Jq*. Further to this work, we establish a more general result about the coarse Lipschitz embeddability of a Banach space which has a q-AUS norm into a Banach space which has a p-AMUC norm for p≺q. With the help of a renorming theorem, we deduce also a result about the Szlenk index. Moreover, after defining the quasi-Lipschitz embeddability, which is slightly different to the almost Lipschitz embeddability, we obtain the following result: For two Banach spaces X, if X is crudely finitely representable with constant C (where C≻1) in any subspace of Y of finite codimension, then every proper subset M of X quasi-Lipschitz embeds into Y. To conclude, we obtain the following corollary: Let X be a locally minimal Banach space, and Y be a Banach space which is crudely finitely representable in X. Then, for M a proper subspace of Y, M quasi-Lipschitz embeds into X
Juniati, Dwi. "De la régularité Lipschitz des espaces stratifiés." Aix-Marseille 1, 2002. http://www.theses.fr/2002AIX11006.
Full textGodard, Alexandre. "Espaces Lipschitz-libres, propriété (M) et lissité asymptotique." Paris 6, 2007. http://www.theses.fr/2007PA066438.
Full textPetitjean, Colin. "Some aspects of the geometry of Lipschitz free spaces." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCD006/document.
Full textSome aspects of the geometry of Lipschitz free spaces.First and foremost, we give the fundamental properties of Lipschitz free spaces. Then, we prove that the canonical image of a metric space M is weakly closed in the associated free space F(M). We prove a similar result for the set of molecules.In the second chapter, we study the circumstances in which F(M) is isometric to a dual space. In particular, we generalize a result due to Kalton on this topic. Subsequently, we focus on uniformly discrete metric spaces and on metric spaces originating from p-Banach spaces.In the next chapter, we focus on l1-like properties. Among other things, we prove that F(M) has the Schur property provided the space of little Lipschitz functions is 1-norming for F(M). Under additional assumptions, we manage to embed F(M) into an l1-sum of finite dimensional spaces.In the fourth chapter, we study the extremal structure of F(M). In particular, we show that any preserved extreme point in the unit ball of a free space is a denting point. Moreover, if F(M) admits a predual, we obtain a precise description of its extremal structure.The fifth chapter deals with vector-valued Lipschitz functions.We generalize some results obtained in the first three chapters.We finish with some considerations of norm attainment. For instance, we obtain a density result for vector-valued Lipschitz maps which attain their norm
Nguyen, Xuan Viet Nhan. "Structure métrique et géométrie des ensembles définissables dans des structures o-minimales." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4742/document.
Full textThe thesis focus on study geometric properties of definable sets in o-minimal structures and its applications. There are three main results presented in this thesis. The first is a geometric proof of the existence of Whitney (a) and (b)-regular stratifications of definable sets. The result was initially proved by T. L. Loi in 1994 by using another method. The second is a proof of existence of Lipschitz stratifications (in the sense of Mostowski) of definable sets in a polynomially bounded o-minimal structure. This is a generalization of Parusinski's 1994 result for subanalytic sets. The third result is about the continuity of of variations of integral geometry called local Lipschitz Killing curvatures which were introduced by A. Bernig and L. Broker in 2002. We prove that Lipschitz Killing curvatures are continuous along strata of Whiney stratifications of definable sets in a polynomially bounded o-minimal structure. Moreover, if the stratifications are (w)-regular the Lipspchitz Killing curvatures are locally Lipschitz
Munnier, Vincent. "Analyse et rectifiabilité dans les espaces métriques singuliers." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00630615.
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