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Tesis sobre el tema "Curvature tensor U_jkh^i"

Autor: Grafiati

Publicado: 7 de junio de 2025

Última modificación: 2 de agosto de 2025

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1

Stavrov, Iva. "Spectral geometry of the Riemann curvature tensor /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?p3095275.

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Thesis (Ph. D.)--University of Oregon, 2003.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 236-241). Also available for download via the World Wide Web; free to University of Oregon users.

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2

Benas, Konstantinos. "The Lanczos tensor in spacetime geometry and the canonical formulation of general relativity." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249589.

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3

Carvalho, Marcos Tulio Alves de. "Soluções invariantes para o tensor de Schouten e tensor curvatura prescritos em variedades localmente conformemente planas." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8635.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2018-06-29T18:43:00Z No. of bitstreams: 2 Tese - Marcos Tulio Alves de Carvalho - 2018.pdf: 2579945 bytes, checksum: 29a08a3db199f6061cf6020d90ce9213 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-07-03T15:18:43Z (GMT) No. of bitstreams: 2 Tese - Marcos Tulio Alves de Carvalho - 2018.pdf: 2579945 bytes, checksum: 29a08a3db199f6061cf6020d90ce9213 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>M

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4

Friday, Brian Matthew. "VANISHING LOCAL SCALAR INVARIANTS ON GENERALIZED PLANE WAVE MANIFOLDS." CSUSB ScholarWorks, 2019. https://scholarworks.lib.csusb.edu/etd/884.

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Characterizing a manifold up to isometry is a challenging task. A manifold is a topological space. One may equip a manifold with a metric, and generally speaking, this metric determines how the manifold “looks". An example of this would be the unit sphere in R3. While we typically envision the standard metric on this sphere to give it its familiar shape, one could define a different metric on this set of points, distorting distances within this set to make it seem perhaps more ellipsoidal, something not isometric to the standard round sphere. In an effort to distinguish manifolds up to isometr

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5

Santos, Almir Rogério Silva. "A construction of constant scalar curvature manifolds with delaunay-type ends." reponame:Repositório Institucional da UFS, 2009. https://ri.ufs.br/handle/riufs/825.

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Foi provado por Byde que é possível adicionar um fim do tipo Delaunay a uma variedade compacta não degenerada de curvatura escalar constante positiva; desde que ela seja localmente conformemente plana em alguma vizinhança do ponto de colagem. A variedade resultante é não-compacta e possui a mesma curvatura escalar constante. O principal objetivo desta tese é generalizar este resultado. Construiremos uma família a um parâmetro de soluções para o problema de Yamabe singular positivo em qualquer variedade compacta não degenerada cujo tensor de Weyl anula-se até uma ordem suficientemente grande no

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6

Saienko, Mykhailo [Verfasser], Andreas [Akademischer Betreuer] [Gutachter] Bernig, and Gil [Gutachter] Solanes. "Tensor-valued valuations and curvature measures in Euclidean spaces / Mykhailo Saienko ; Gutachter: Andreas Bernig, Gil Solanes ; Betreuer: Andreas Bernig." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2016. http://d-nb.info/111988702X/34.

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7

Simpson, Leon. "Geometric algebra as applied to freeform motion design and improvement." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558894.

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Freeform curve design has existed in various forms for at least two millennia, and is important throughout computer-aided design and manufacture. With the increasing importance of animation and robotics, coupled with the increasing power of computers, there is now interest in freeform motion design, which, in part, extends techniques from curve design, as well as introducing some entirely distinct challenges. There are several approaches to freeform motion construction, and the first step in designing freeform motions is to choose a representation. Unlike for curves, there is no "standard" way

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8

Lawrence, Miles D. "Einstein's Equations in Vacuum Spacetimes with Two Spacelinke Killing Vectors Using Affine Projection Tensor Geometry." VCU Scholars Compass, 1994. http://scholarscompass.vcu.edu/etd/1473.

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Einstein's equations in vacuum spacetimes with two spacelike killing vectors are explored using affine projection tensor geometry. By doing a semi-conformal transformation on the metric, a new "fiducial" geometry is constructed using a projection tensor fields. This fiducial geometry provides coordinate independent information about the underlying structure of the spacetime without the use of an explicit form of the metric tensor.

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9

Evangelista, Israel de Sousa. "Compact almost Ricci soliton, critical metrics of the total scalar curvature functional and p-fundamental tone estimates." reponame:Repositório Institucional da UFC, 2017. http://www.repositorio.ufc.br/handle/riufc/23920.

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EVANGELISTA, I. S. Compact almost Ricci soliton, critical metrics of the total scalar curvature functional and p-fundamental tone estimates. 2017. 75 f. Tese (Doutorado em Matemática) – Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2017.<br>Submitted by Andrea Dantas (pgmat@mat.ufc.br) on 2017-07-10T12:41:32Z No. of bitstreams: 1 2017_tese_isevangelista.pdf: 618771 bytes, checksum: 7e4bb8d9fd8825ef347e309171075037 (MD5)<br>Approved for entry into archive by Rocilda Sales (rocilda@ufc.br) on 2017-07-10T14:06:18Z (GMT) No. of bitstreams: 1 2017_tese_isevangelista.pdf: 618771 byte

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10

CARVALHO, Fernando Soares de. "Difeomorfismos conformes que preservam o tensor de Ricci em variedades semi-riemannianas." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tde/1944.

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Made available in DSpace on 2014-07-29T16:02:18Z (GMT). No. of bitstreams: 1 Dissertacao Fernando Soares de Carvalho.pdf: 3468325 bytes, checksum: 30df6cf936483cf5aec035b1bdd9d208 (MD5) Previous issue date: 2011-01-28<br>NOTE: Because some programs do not copy symbols, formulas, etc... to view the summary and the contents of the file, click on PDF - dissertation on the bottom of the screen.<br>OBS: Como programas não copiam certos símbolos, fórmulas... etc, para visualizar o resumo e o todo o arquivo, click em PDF - dissertação na parte de baixo da tela.

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11

Moruz, Marilena. "Étude des sous-variétés dans les variétés kählériennes, presque kählériennes et les variétés produit." Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0003/document.

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Cette thèse est constituée de quatre chapitres. Le premier contient les notions de base qui permettent d'aborder les divers thèmes qui y sont étudiés. Le second est consacré à l'étude des sous-variétés lagrangiennes d'une variété presque kählérienne. J'y présente les résultats obtenus en collaboration avec Burcu Bektas, Joeri Van der Veken et Luc Vrancken. Dans le troisième, je m'intéresse à un problème de géométrie différentielle affine et je donne une classification des hypersphères affines qui sont isotropiques. Ce résultat a été obtenu en collaboration avec Luc Vrancken. Et enfin dans le d

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12

Păun, Mihai. "Fibrés en droites numériquement effectifs et variétés kahlériennes compactes à courbure de Ricci nef." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10011.

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L'objet principal de cette these est l'etude des fibres en droites numeriquement effectifs sur les varietes complexes compactes et les proprietes des varietes kahleriennes compactes a classe de ricci nef. Dans une premiere partie, nous demontrons que la notion d'effectivite numerique, generalisee au sens de la courbure des metriques hermitiennes, est invariante par image inverse via les morphismes surjectifs entre varietes complexes compactes. Dans le cadre des varietes de moishezon, ceci implique l'equivalence des deux formulations de l'effectivite numerique, au sens de la courbure d'une part

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13

Barrêto, Felipe Fernando ângelo. "Aplicações da geometria riemanniana em estatística matemática." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/7422.

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Made available in DSpace on 2015-05-15T11:46:16Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 713593 bytes, checksum: 9a4eca1dfe2fca22fc63a3364773af08 (MD5) Previous issue date: 2013-09-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Cook's local infuence approach based on normal curvature is an important diagnostic tool for assessing local infuence of minor perturbations to a statistical model. However, no rigorous approach has been developed to address two fundamental issues: the selection of an appropriate perturbation and the development of infuence mea

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14

Silva, Felipe Wallison Chaves. "Controlabilidade para o sistema de Navier-Stokes." Universidade Federal da Paraíba, 2009. http://tede.biblioteca.ufpb.br:8080/handle/tede/7452.

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Made available in DSpace on 2015-05-15T11:46:23Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 490053 bytes, checksum: c9cf689fde66aed86d7eb372eeb05045 (MD5) Previous issue date: 2009-05-15<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Cook's local infuence approach based on normal curvature is an important diagnostic tool for assessing local infuence of minor perturbations to a statistical model. However, no rigorous approach has been developed to address two fundamental issues: the selection of an appropriate perturbation and the development of infuence mea

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15

Kluender, Rafael. "Mesures en trois dimensions des distorsions cristallines par imagerie en diffraction de Bragg : application aux cristaux de glace." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00635598.

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La déformation visco-plastique de la glace est fortement anisotrope, le plan de glissement préferé étant la plan de base. Le fait que dans un polycristal chaque grain possède sa propre direction de déformation produit des incompatibilités et un champ de contrainte complexe. La déformation à été étudiée expérimentellement en mésurant la dis- tortion des plans cristallins de mono- et polycristaux de glace artificielle. Les expériences ont été réalisées à l'aide d'un faisceau synchrotron. Une nouvelle procédure éxperimental, basée sur les méthodes de l'imagerie en diffraction de Bragg, comme lumi

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16

Han, Bang-Xian. "Analyse dans les espaces métriques mesurés." Thesis, Paris 9, 2015. http://www.theses.fr/2015PA090014/document.

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Cette thèse traite de plusieurs sujets d'analyse dans les espaces métriques mesurés, en lien avec le transport optimal et des conditions de courbure-dimension. Nous considérons en particulier les équations de continuité dans ces espaces, du point de vue de fonctionnelles continues sur les espaces de Sobolev, et du point de vue de la dualité avec les courbes absolument continues dans l'espace de Wasserstein. Sous une condition de courbure-dimension, mais sans condition de doublement de mesure ou d'inégalité de Poincaré, nous montrons également l'identification des p-gradients faibles. Nous étud

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17

ANSELLI, ANDREA. "PHI-CURVATURES, HARMONIC-EINSTEIN MANIFOLDS AND EINSTEIN-TYPE STRUCTURES." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/703786.

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The aim of this thesis is to study the geometry of a Riemannian manifold M, with a special structure, called Einstein-type structure, depending on 3 real parameters, a smooth map phi into a target Riemannian manifold N, and a smooth function, called potential function, on M itself. We will occasionally let some of the parameters be smooth functions. The setting generalizes various previously studied situations:, Ricci solitons, almost Ricci-solitons, Ricci-harmonic solitons, quasi-Einstein manifolds and so on. By taking a constant potential function those structures reduces to harmonic-Einstei

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18

Rojas, Quintero Juan Antonio. "Contribution à la manipulation dextre dynamique pour les aspects conceptuels et de commande en ligne optimale." Thesis, Poitiers, 2013. http://www.theses.fr/2013POIT2284/document.

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Nous nous intéressons à la conception des mains mécaniques anthropomorphes destinées à manipuler des objets dans un environnement humain. Via l'analyse du mouvement de sujets humains lors d'une tâche de manipulation de référence, nous proposons une méthode pour évaluer la capacité des mains robotiques à manipuler les objets. Nous montrons comment les rapports de couplage angulaires entre les articulations et les limites articulaires, influent sur l'aptitude à manipuler dynamiquement des objets. Nous montrons également l'impact du poignet sur les tâches de manipulation rapides. Nous proposons u

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19

Ozkan, Mehmet. "Supersymmetric Curvature Squared Invariants in Five and Six Dimensions." Thesis, 2013. http://hdl.handle.net/1969.1/151223.

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In this dissertation, we investigatethe supersymmetric completion of curvature squared invariants in five and six dimensionsas well as the construction of off-shell Poincar´e supergravities and their matter couplings. We use superconformal calculus in fiveand six dimensions, which are an off- shell formalisms. In fivedimensions,there are twoinequivalentWeyl multiplets: the standard Weyl multiplet and the dilaton Weyl multiplet.The main difference betweenthese twoWeyl multiplets is thatthe dilaton Weyl multipletcontains a graviphoton in its field content whereas the standard Weyl multiplet doe

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20

Rajaratnam, Krishan. "Orthogonal Separation of The Hamilton-Jacobi Equation on Spaces of Constant Curvature." Thesis, 2014. http://hdl.handle.net/10012/8350.

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What is in common between the Kepler problem, a Hydrogen atom and a rotating black- hole? These systems are described by diﬀerent physical theories, but much information about them can be obtained by separating an appropriate Hamilton-Jacobi equation. The separation of variables of the Hamilton-Jacobi equation is an old but still powerful tool for obtaining exact solutions. The goal of this thesis is to present the theory and application of a certain type of conformal Killing tensor (hereafter called concircular tensor) to the separation of variables problem. The application is to space

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21

Reza, Md Ramiz. "Curvature Inequalities for Operators in the Cowen-Douglas Class of a Planar Domain." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2974.

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22

Reza, Md Ramiz. "Curvature Inequalities for Operators in the Cowen-Douglas Class of a Planar Domain." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2974.

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23

Tshikunguila, Tshikuna-Matamba. "The differential geometry of the fibres of an almost contract metric submersion." Thesis, 2013. http://hdl.handle.net/10500/18622.

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Almost contact metric submersions constitute a class of Riemannian submersions whose total space is an almost contact metric manifold. Regarding the base space, two types are studied. Submersions of type I are those whose base space is an almost contact metric manifold while, when the base space is an almost Hermitian manifold, then the submersion is said to be of type II. After recalling the known notions and fundamental properties to be used in the sequel, relationships between the structure of the fibres with that of the total space are established. When the fibres are almost Hermiti

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