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Dissertations / Theses on the topic 'Finsler'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Modayil, Joseph. "Landsberg spaces in Finsler geometry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0019/MQ47072.pdf.

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2

Solórzano, Chávez Newton Mayer. "Métricas de Finsler esfericamente simétricas." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.03.T.18517.

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Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Exatas, 2015.<br>Submitted by Ana Cristina Barbosa da Silva (annabds@hotmail.com) on 2015-07-06T14:30:58Z No. of bitstreams: 1 2015_NewtonMayerSolorzanoChavez.pdf: 713834 bytes, checksum: fa5dcfcc4bcd42f4b02d1ce4b3e3f95b (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2015-08-18T12:21:50Z (GMT) No. of bitstreams: 1 2015_NewtonMayerSolorzanoChavez.pdf: 713834 bytes, checksum: fa5dcfcc4bcd42f4b02d1ce4b3e3f95b (MD5)<br>Made available in DSpace on 2015-08-18T12:21:50Z (GMT). No. of bitstreams: 1
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3

Silva, Júnior Rinaldo Vieira da 1981. "Calculo estocastico em variedades Finsler." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306287.

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Orientador: Paulo Regis Caron Ruffino<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Cientifica<br>Made available in DSpace on 2018-08-04T02:49:45Z (GMT). No. of bitstreams: 1 SilvaJunior_RinaldoVieirada_M.pdf: 1586291 bytes, checksum: 8d01bdf434ecba2fb62a57725c46dd4a (MD5) Previous issue date: 2005<br>Resumo: Nesta dissertação fizemos um estudo da teoria de difusão em variedades Finsler, onde abor-damos o transporte paralelo estocástico, desenvolvimento estocástico de Cartan e Movimento Browniano. O objetivo principal é obter
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4

Verovic, Patrick. "Entropies et métriques de Finsler." Grenoble 1, 1996. http://www.theses.fr/1996GRE10138.

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Pose au debut des annees 80 par a. Katok et m. Gromov, le probleme riemannien de l'entropie minimale a recu une reponse positive en 1994 grace aux resultats de g. Besson, g. Courtois et s. Gallot. Comme un prolongement de ce travail, l'objet de cette these est l'etude du minimum des entropies volumique et topologique pour les metriques de finsler qui constituent la plus petite extension de la geometrie de riemann. Les trois premiers chapitres conduisent a la construction explicite d'un contre-exemple general a la conjecture finslerienne de l'entropie volumique minimale sur les espaces riemanni
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5

Cagil, Ayse. "Finsler Geometry And Its Applications Toelectromagnetism." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1106350/index.pdf.

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In this thesis Finsler geometry is extensively reviewed. The geometrization of fields by a Finslerian approach is considered. Also unification of electrodynamics and gravitation with suitable Finslerian metrics is examined.
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6

CHIMENTON, ALESSANDRO GAIO. "TRANSITIVE FINSLER GEODESIC OWS AND APPLICATIONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26523@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO<br>Neste trabalho provamos que o fluxo geodésico de uma variedade Finsler de dimensão n compacta, sem pontos conjugados e que é uma variedade de visibilidade uniforme é transitivo. Para isso, introduzimos versões Finsler dos conceitos de hiperbolicidade de Gromov e visibilidade de Eberlein e estudamos suas consequências. Como aplicação da transitividade, prov
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7

Overath, Patrick [Verfasser]. "Minimal immersions in Finsler spaces / Patrick Overath." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1058354485/34.

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8

Centore, Paul. "A mean-value Laplacian for Finsler spaces." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41414.pdf.

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9

Raeisidehkordi, Hengameh. "Finsler Transnormal Functions and Singular Foliations of Codimension 1." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-05042018-210826/.

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Transnormal functions are generalization of distance functions and this topic has some applications in Physics and real world problems. In this work, some results are generalized from Riemannian case to the Finsler one. Moreover certain new phenomena that happen only in Finsler spaces are discussed. To have a better understanding, certain examples based on the mentioned results in Randers spaces are provided. Moreover, some applications on propagation of waves of fire and water are introduced<br>As funções transnormais são a generalização da função de distância e este tópico tem algumas aplica
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10

Carmo, Antônio Santos do. "Algumas aplicações da geometria de Finsler na gravidade bimétrica." reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/23540.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Física, Programa de Pós-Graduação em Física, 2017.<br>Submitted by Raquel Almeida (raquel.df13@gmail.com) on 2017-05-18T21:09:16Z No. of bitstreams: 1 2017_AntônioSantosdoCarmo.pdf: 738956 bytes, checksum: ad9008e1e86cc9b2bc7bf9d2e28186c8 (MD5)<br>Approved for entry into archive by Raquel Viana (raquelviana@bce.unb.br) on 2017-05-19T21:27:15Z (GMT) No. of bitstreams: 1 2017_AntônioSantosdoCarmo.pdf: 738956 bytes, checksum: ad9008e1e86cc9b2bc7bf9d2e28186c8 (MD5)<br>Made available in DSpace on 2017-05-19T21:27:15Z (GMT). No. of bitstr
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Venegas, Martínez Francisco Javier Antonio. "Un teorema tipo Banach-Stone para variedades de Finsler." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/152148.

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Tesis para optar al grado de Magíster en Ciencias de la Ingeniería, Mención Matemáticas Aplicadas<br>Memoria para optar al título de Ingeniero Civil Matemático<br>Uno de los resultados clásicos dentro de la teoría de espacios topológicos y funciones continuas es el Teorema de Banach-Stone, el cual relaciona la estructura topológica de un espacio compacto $X$ con la estructura de espacio vectorial normado del espacio de funciones continuas a valores reales $\left(C(X,\R),\|\cdot\|_\infty\right)$. A partir de este teorema surgieron diversos resultados en el mismo espíritu: caracterizar la estruc
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Otero, Diego Mano. "Geometria de Finsler, cálculo de variações e equação de onda." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306818.

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Orientadores: Carlos Eduardo Durán Fernandez, Márcio Antônio de Faria Rosa<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Cientifica<br>Made available in DSpace on 2018-08-16T14:48:33Z (GMT). No. of bitstreams: 1 ManoOtero_Diego_M.pdf: 1221591 bytes, checksum: 33ae6e3b671523a9602f3398e14d4fb7 (MD5) Previous issue date: 2010<br>Resumo: A motivação inicial deste trabalho foi tentar relacionar os conceitos de geometria de Finsler com situações físicas que temos uma certa dependência de direções no nosso espaço. Apresentamos o con
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Holm, Christian. "The hyperspin structure of Einstein universes and their neutrino spectrum." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/29178.

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14

Barthelmé, Thomas. "A new Laplace operator in Finsler geometry and periodic orbits of Anosov flows." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00660059.

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In the first part of this dissertation, we give a new definition of a Laplace operator for Finsler metric as an average, with regard to an angle measure, of the second directional derivatives. This operator is elliptic, symmetric with respect to the Holmes-Thompson volume, and coincides with the usual Laplace--Beltrami operator when the Finsler metric is Riemannian. We compute explicit spectral data for some Katok-Ziller metrics. When the Finsler metric is negatively curved, we show, thanks to a result of Ancona that the Martin boundary is Hölder-homeomorphic to the visual boundary. This allow
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15

Silva, Carlos Antonio Freitas da. "Construção explícita de métricas de Einstein-Finsler com curvatura flag não constante." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/4520.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-05-14T14:51:34Z No. of bitstreams: 2 Dissertação - Carlos Antônio Freitas da Silva - 2015.pdf: 659907 bytes, checksum: c43cf65b3e27833fcd6b4ab11eb79239 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-05-14T14:53:28Z (GMT) No. of bitstreams: 2 Dissertação - Carlos Antônio Freitas da Silva - 2015.pdf: 659907 bytes, checksum: c43cf65b3e27833fcd6b4ab11eb79239 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a771
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Oliveira, Ana Kelly de. "Geometria dos exemplos de Katok." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-03042017-164826/.

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Estudamos exemplos de métricas Finsler simétricas e não-simétricas em S^n, CP^n e HP^n com uma quantidade finita de geodésicas fechadas ou com uma quantidade pequena de geodésicas fechadas \"curtas\". São os chamados exemplos de Katok. Usamos como referência o artigo \"Geometry of the Katok examples\" de Wolfgang Ziller. Verificamos que existem métricas Finsler cujo número de geodésicas fechadas é 2n (no caso de S^ e S^), n(n+1) (no caso de CP^n) e 2n(n+1) (no caso de CP^n). Tais exemplos são construídos numa vizinhança qualquer da métrica Riemanniana canônica dessas variedades.<br>We study ex
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Barthelm��, Thomas. "A new Laplace operator in Finsler geometry and periodic orbits of Anosov flows." Phd thesis, Universit�� de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00742836.

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In the first part of this dissertation, we give a new definition of a Laplace operator for Finsler metric as an average, with regard to an angle measure, of the second directional derivatives. This operator is elliptic, symmetric with respect to the Holmes-Thompson volume, and coincides with the usual Laplace--Beltrami operator when the Finsler metric is Riemannian. We compute explicit spectral data for some Katok-Ziller metrics. When the Finsler metric is negatively curved, we show, thanks to a result of Ancona that the Martin boundary is H��lder-homeomorphic to the visual boundary. This allo
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18

Souza, Fausto Marçal de. "Teoria de Morse para o problema das geodesicas fechadas em variedades de Finsler." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307100.

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Orientador: Francesco Mercuri<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Matematica, Estatistica e Computação Cientifica<br>Made available in DSpace on 2018-07-23T06:16:08Z (GMT). No. of bitstreams: 1 Souza_FaustoMarcalde_D.pdf: 3773786 bytes, checksum: b0c8a9073cc06177fbc3a81fee13c235 (MD5) Previous issue date: 1997<br>Resumo: Neste trabalho desenvolvemos a Teoria de Morse para funções de baixa diferenciabilidade (de classe C1), com segunda derivada nos pontos críticos isolados e, possivelmente degenerados. Aplicamos os resultados obtidos ao problema de geodésicas
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19

Paim, Cristiane. "Analyse et commande de systèmes linéaires soumis à des saturations." Toulouse 3, 2003. http://www.theses.fr/2003TOU30054.

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20

Lang, Julius [Verfasser], Vladimir [Gutachter] Matveev, Zoltán [Gutachter] Muzsnay, and Boris [Gutachter] Kruglikov. "Three projective problems on Finsler surfaces / Julius Lang ; Gutachter: Vladimir Matveev, Zoltán Muzsnay, Boris Kruglikov." Jena : Friedrich-Schiller-Universität Jena, 2020. http://d-nb.info/1207272450/34.

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21

Daza, John Elber Gómez. "Superfícies mínimas e curvatura de gauss de conóides em espaços de finsler com (α,β) - métricas". Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/3634.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2014-11-14T20:38:05Z No. of bitstreams: 2 Dissertação - John Elber Gómez Daza - 2014.pdf: 3536612 bytes, checksum: f7e71dbc62f224cd024c41999d7b2f0c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-11-18T15:40:54Z (GMT) No. of bitstreams: 2 Dissertação - John Elber Gómez Daza - 2014.pdf: 3536612 bytes, checksum: f7e71dbc62f224cd024c41999d7b2f0c (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD
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Persson, Nicklas. "Shortest paths and geodesics in metric spaces." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-66732.

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This thesis is divided into three part, the first part concerns metric spaces and specically length spaces where the existence of shortest path between points is the main focus. In the second part, an example of a length space, the Riemannian geometry will be given. Here both a classical approach to Riemannian geometry will be given together with specic results when considered as a metric space. In the third part, the Finsler geometry will be examined both with a classical approach and trying to deal with it as a metric space.
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Carvalho, Tânia M. Machado de. "Superfícies com curvatura média constante na direção de um campo normal unitário em um espaço de Randers." reponame:Repositório Institucional da UnB, 2008. http://repositorio.unb.br/handle/10482/5562.

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Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Exatas, Departamento de Matemática, 2008.<br>Submitted by wesley oliveira leite (leite.wesley@yahoo.com.br) on 2009-09-22T18:47:49Z No. of bitstreams: 1 2008_TaniaMariaMachadoCarvalho.pdf: 389698 bytes, checksum: 98751823d73806f7e487fe92fc857171 (MD5)<br>Approved for entry into archive by Gomes Neide(nagomes2005@gmail.com) on 2010-10-05T12:59:17Z (GMT) No. of bitstreams: 1 2008_TaniaMariaMachadoCarvalho.pdf: 389698 bytes, checksum: 98751823d73806f7e487fe92fc857171 (MD5)<br>Made available in DSpace on 2010-10-05T12:59:17Z (GMT
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Bombieri, Eduardo. "Alternative LMI formulations applied to a dynamic anti-windup synthesis method." reponame:Repositório Institucional da UFSC, 2014. https://repositorio.ufsc.br/xmlui/handle/123456789/129617.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Automação e Sistemas, Florianópolis, 2014.<br>Made available in DSpace on 2015-02-05T21:18:17Z (GMT). No. of bitstreams: 1 329960.pdf: 1016550 bytes, checksum: 247c4dee44c73c24ff2947f7c9e4d4aa (MD5) Previous issue date: 2014<br>Abstract : The synthesis of modern anti-windup controllers for saturated systemsis a very important problem specially when high performance and guaranteeof stability are required. For such objectives it is not possible toavoid the system satu
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Feddern, Stephanie [Verfasser], Heiko von der [Akademischer Betreuer] Mosel, and Alfred [Akademischer Betreuer] Wagner. "On curves and surfaces of prescribed mean curvature in Finsler spaces / Stephanie Feddern ; Heiko von der Mosel, Alfred Wagner." Aachen : Universitätsbibliothek der RWTH Aachen, 2018. http://d-nb.info/1181335299/34.

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Mehanna, Benjamin [Verfasser], Karl Friedrich [Akademischer Betreuer] Siburg, and Lorenz Johannes [Gutachter] Schwachhöfer. "Magnetische Billards, Finsler-Billards und das Spektrum eines Billards / Benjamin Mehanna. Betreuer: Karl Friedrich Siburg. Gutachter: Lorenz Johannes Schwachhöfer." Dortmund : Universitätsbibliothek Dortmund, 2016. http://d-nb.info/1112327290/34.

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Klein, Markus, Christian Léonard, and Elke Rosenberger. "Agmon-type estimates for a class of jump processes." Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/5699/.

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In the limit we analyze the generators of families of reversible jump processes in the n-dimensional space associated with a class of symmetric non-local Dirichlet forms and show exponential decay of the eigenfunctions. The exponential rate function is a Finsler distance, given as solution of certain eikonal equation. Fine results are sensitive to the rate functions being twice differentiable or just Lipschitz. Our estimates are similar to the semiclassical Agmon estimates for differential operators of second order. They generalize and strengthen previous results on the lattice.
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Alves, Benigno Oliveira. "Sobre folheações Finslerianas singulares." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-14122017-130959/.

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Nesta tese foi introduzido o conceito de folheação Finsleriana singular, que generaliza ação Finsleriana, submersão Finsler e folheação Finsleriana. O primeiro resultado desta tese afirma que qualquer folheação Finsleriana singular sobre uma variedade Randers com data (h,W) é folheação Riemanniana singular com respeito a h e W é um campo folheado. Para obter este resultado provou-se um teorema de redução ao slice, que permite relacionar uma folheação Finsleriana singular com uma folheação Finsleriana singular em um espaço de Minkowski. O terceiro resultado garante a equifocalidade para as fi
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Yassine, Zeina. "Géométrie systolique extrémale sur les surfaces." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1074/document.

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En 1949, C. Loewner a demontré dans un travail non publié l'inégalité systolique optimale du tore T reliant l'aire au carré de la systole. Par la systole on désigne la longueur du plus court lacet non contractile de T. De plus, l' égalité est atteinte si et seulement si le tore est plat hexagonal. Ce résultat a donné naissance à la géométrie systolique. Dans cette thèse, nous étudions des inégalités de type systolique portant sur les longueurs minimales de différentes courbes et pas seulement la systole.Dans un premier temps, nous démontrons trois inégalités géométriques optimales conformes su
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Arcostanzo, Marc. "Rigidité et prolongement au disque d'une distance sur le bord." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10216.

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Etant donne une distance d sur le bord d'un disque de dimension deux, nous cherchons dans cette these a prolonger d en une distance sur le disque tout entier, de telle sorte que l'espace metrique obtenu soit un espace de longueur, par exemple une metrique riemannienne ou finslerienne. Le prolongement est dit rigide s'il est unique a isometrie pres. Des resultats de rigidite ont ete obtenus par r. Michel, j. P. Otal et c. B. Croke en se restreignant aux metriques riemanniennes. Nous prouvons ici la rigidite des metriques euclidiennes a singularites coniques de courbures negatives. Nous donnons
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CARIELO, Marcelo Santos. "O método da trofodinâmica análitica: fundamentação matemática e aplicações." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17658.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-11T14:47:03Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO (2015-03-20) - MARCELO SANTOS CARIELO[30-03-2016].pdf: 1081373 bytes, checksum: d94173b038b7893578b286bd3703e416 (MD5)<br>Made available in DSpace on 2016-08-11T14:47:03Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO (2015-03-20) - MARCELO SANTOS CARIELO[30-03-2016].pdf: 1081373 bytes, checksum: d94173b038b7893578b286bd3703e416 (M
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Ferrand, Emmanuel. "Familles génératrices et noeuds legendriens." Palaiseau, Ecole polytechnique, 1997. http://www.theses.fr/1997EPXX0008.

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Dans la première partie de la thèse, j'introduis des outils inspirés de la théorie de morse stable dans le but d'étudier quelques problèmes de géométrie de contact, comme la classification des noeuds légendriens. Dans la seconde partie, je démontre que l'espace des géodésiques d'une variété de Hadamard de dimension n est naturellement symplectomorphe au cotangent de la sphère de dimension n - 1. Ceci permet d'appliquer les techniques de familles génératrices à certaines questions de géometrie riemanienne, telles que la minoration du nombre de diamètres des sous-variétés des espaces de Hadamard
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Rosenberger, Elke. "Asymptotic spectral analysis and tunnelling for a class of difference operators." Phd thesis, [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=98050368X.

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Silva, José Euclides Gomes da. "Sobre modificações na estrutura geométrica em cenários de branas." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/8079.

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SILVA, José Euclides Gomes da. Sobre modificações na estrutura geométrica em cenários de branas. 2013. 130 f. Tese (Doutorado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2013.<br>Submitted by Edvander Pires (edvanderpires@gmail.com) on 2014-05-16T21:35:18Z No. of bitstreams: 1 2013_tese_jegsilva.pdf: 836100 bytes, checksum: c4765585f192ce0d02aa423186d47ae3 (MD5)<br>Approved for entry into archive by Edvander Pires(edvanderpires@gmail.com) on 2014-05-16T21:38:09Z (GMT) No. of bitstreams: 1 2013_tese_jegs
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Adouani, Inès. "Quelques problèmes de géométrie Finslérienne et Kählerienne." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066130.

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Cette thèse traite de quelques problèmes classiques en géométrie complexe. La première partie est consacrée à la géométrie Finslérienne complexe. Étant donnés deux fibrés vectoriels holomorphes E1 et E2, munis respectivement de deux structures Finslériennes F1 et F2, on construit une métrique Finslérienne F sur le fibré E 1 ⊗ E 2 faisant intervenir les structures Finslériennes initiales. Moyennant une hypothèse sur les sections globales de E1* et E2*, on donne une condition optimale sous laquelle F est strictement pseudo convexe à courbure négative. Ce résultat est présenté après un chapitre c
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Rivera, Hernández Sergio. "Tensorial spacetime geometries carrying predictive, interpretable and quantizable matter dynamics." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/6186/.

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Which tensor fields G on a smooth manifold M can serve as a spacetime structure? In the first part of this thesis, it is found that only a severely restricted class of tensor fields can provide classical spacetime geometries, namely those that can carry predictive, interpretable and quantizable matter dynamics. The obvious dependence of this characterization of admissible tensorial spacetime geometries on specific matter is not a weakness, but rather presents an insight: it was Maxwell theory that justified Einstein to promote Lorentzian manifolds to the status of a spacetime geometry. Any mat
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Fernandes, Karoline Victor. "Métricas de Randers Localmente Dualmente Flat." Universidade Federal de Goiás, 2010. http://repositorio.bc.ufg.br/tede/handle/tde/1968.

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Made available in DSpace on 2014-07-29T16:02:22Z (GMT). No. of bitstreams: 1 dissertacao karoline fernandes.pdf: 700169 bytes, checksum: bbcf93fe91f369b6605215c70576e124 (MD5) Previous issue date: 2010-02-26<br>We will study the Finsler metric, on a manifold M, defined as the sum of a Riemannian metric and a 1-form, they are known as Randers metric. We will classify those that are locally dually flat, that is, for all point exists a coordinate system in which the equation of the geodesic has a special form, the coefficients of spray is given in terms of the metric one and a local scalar fu
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Hobe, Bernd, and Gesine Schröder. "Flüchtig und finster." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-103654.

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Das Liedschaffen Felix Mendelssohn Bartholdys war zu Beginn des 21. Jahrhunderts nur zu knapp zwei Dritteln der tatsächlichen Produktion bekannt. Erst im Jahre 2007 erschienene, bis dahin ungedruckte oder an entlegener Stelle veröffentlichte Lieder werden in vorliegender Studie zusammen mit den übrigen, nicht mit einer Opuszahl versehenen Liedern und Duetten zu thematischen Untergruppen geordnet und knapp in textlich-musikalischer Hinsicht charakterisiert. Diese Lieder und Duette, die nach dem Wunsch des Komponisten in den allermeisten Fällen nicht in die Öffentlichkeit gelangen sollten, stell
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Meinhardt, Llopis Enric. "Morphological and statistical techniques for the analysis of 3D images." Doctoral thesis, Universitat Pompeu Fabra, 2011. http://hdl.handle.net/10803/22719.

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Aquesta tesi proposa una estructura de dades per emmagatzemar imatges tridimensionals. L'estructura da dades té forma d'arbre i codifica les components connexes dels conjunts de nivell de la imatge. Aquesta estructura és la eina bàsica per moltes aplicacions proposades: operadors morfològics tridimensionals, visualització d'imatges mèdiques, anàlisi d'histogrames de color, seguiment d'objectes en vídeo i detecció de vores. Motivada pel problema de la completació de vores, la tesi conté un estudi de com l'eliminació de soroll mitjançant variació total anisòtropa es pot fer servir pe
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Silva, Jose Euclides Gomes da. "Sobre modificaÃÃes na estrutura geomÃtrica em cenÃrios de branas." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10737.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>This thesis presents our proposals for new braneworlds models. Some of the main open issues in high energy physics have interesting solutions assuming the space-time has more than four dimensions. For instance, the hierarchy problem between the eletroweak and the Planck scales, and the origin of the cosmological constant, find some solutions in the brane scenarios. Since these models are rather sensible on the geometrical structure of the multidimensional space time where the brane is embedded, our main goal is to analyze how the
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Langouët, Patrice. "Sur la stabilité locale des systèmes linéaires soumis à des actionneurs limités en amplitude et en dynamique." Toulouse 3, 2003. http://www.theses.fr/2003TOU30190.

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Qu, Zheng. "Théorie de Perron-Frobenius non linéaire et méthodes numériques max-plus pour la résolution d'équations d'Hamilton-Jacobi." Phd thesis, Ecole Polytechnique X, 2013. http://pastel.archives-ouvertes.fr/pastel-00927122.

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Une approche fondamentale pour la résolution de problémes de contrôle optimal est basée sur le principe de programmation dynamique. Ce principe conduit aux équations d'Hamilton-Jacobi, qui peuvent être résolues numériquement par des méthodes classiques comme la méthode des différences finies, les méthodes semi-lagrangiennes, ou les schémas antidiffusifs. À cause de la discrétisation de l'espace d'état, la dimension des problèmes de contrôle pouvant être abordés par ces méthodes classiques est souvent limitée à 3 ou 4. Ce phénomène est appellé malédiction de la dimension. Cette thèse porte sur
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Chen, Da. "Nouveaux modèles de chemins minimaux pour l'extraction de structures tubulaires et la segmentation d'images." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLED037/document.

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Dans les domaines de l’imagerie médicale et de la vision par ordinateur, la segmentation joue un rôle crucial dans le but d’extraire les composantes intéressantes d’une image ou d’une séquence d’images. Elle est à l’intermédiaire entre le traitement d’images de bas niveau et les applications cliniques et celles de la vision par ordinateur de haut niveau. Ces applications de haut niveau peuvent inclure le diagnostic, la planification de la thérapie, la détection et la reconnaissance d'objet, etc. Parmi les méthodes de segmentation existantes, les courbes géodésiques minimales possèdent des avan
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Finster, Myriam [Verfasser]. "Veech Groups and Translation Coverings / Myriam Finster." Karlsruhe : KIT Scientific Publishing, 2014. http://www.ksp.kit.edu.

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Finster, Myriam [Verfasser]. "Veech Groups and Translation Coverings / Myriam Finster." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1041665571/34.

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Hatchi, Roméo. "Analyse mathématique de modèles de trafic routier congestionné." Thesis, Paris 9, 2015. http://www.theses.fr/2015PA090048/document.

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Cette thèse est dédiée à l'étude mathématique de quelques modèles de trafic routier congestionné. La notion essentielle est l'équilibre de Wardrop. Elle poursuit des travaux de Carlier et Santambrogio avec des coauteurs. Baillon et Carlier ont étudié le cas de grilles cartésiennes dans $\RR^2$ de plus en plus denses, dans le cadre de la théorie de $\Gamma$-convergence. Trouver l'équilibre de Wardrop revient à résoudre des problèmes de minimisation convexe. Dans le chapitre 2, nous regardons ce qui se passe dans le cas de réseaux généraux, de plus en plus denses, dans $\RR^d$. Des difficultés n
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Turkowski, Einar. "Es war finster und merkwürdig still : eine Küstengeschichte /." Zürich : Atlantis, 2005. http://deposit.ddb.de/cgi-bin/dokserv?id=2653617&prov=M&dok_var=1&dok_ext=htm.

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Grotz, Andreas [Verfasser], and Felix [Akademischer Betreuer] Finster. "A Lorentzian quantum geometry / Andreas Grotz. Betreuer: Felix Finster." Regensburg : Universitätsbibliothek Regensburg, 2011. http://d-nb.info/1023282259/34.

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Beteto, Marco Antonio Leite. "Less conservative conditions for the robust and Gain-Scheduled LQR-state derivative controllers design /." Ilha Solteira, 2019. http://hdl.handle.net/11449/180976.

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Orientador: Edvaldo Assunção<br>Resumo: Neste trabalho é proposta a resolução do problema do regulador linear quadrático (Linear Quadratic Regulator - LQR) via desigualdades matriciais lineares (Linear Matrix Inequalities - LMIs) para sistemas lineares e invariantes no tempo sujeitos a incertezas politópicas, bem como para sistemas lineares sujeitos a parâmetros variantes no tempo (Linear Parameter Varying - LPV). O projeto dos controladores é baseado na realimentação derivativa. A escolha da realimentação derivativa se dá devido à sua fácil implementação em certas aplicações como, por exemplo
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Finster, Sören [Verfasser], and M. [Akademischer Betreuer] Zitterbart. "Protokolle für privatsphärengerechtes Smart Metering / Sören Finster. Betreuer: M. Zitterbart." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1056955953/34.

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