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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Viviano and Niccolò Codazzi and the baroque architectural fantasy /

Marshall, David Ryley. January 1993 (has links)
Texte remanié de: Th. Ph. D.--La Trobe university, 1984.
2

Gobierno y geografía : Agustín Codazzi y la Comisión corográfica de la Nueva Granada /

Sánchez, Efraín, January 1998 (has links)
Texte remanié de: Tesis doctoral--Universidad de Oxford, 1994. / Bibliogr. p. 653-665. Index.
3

A Equação de Codazzi em superfícies

Santos, Maria Rosilene Barroso dos 04 March 2011 (has links)
Made available in DSpace on 2016-06-02T20:28:26Z (GMT). No. of bitstreams: 1 3607.pdf: 812338 bytes, checksum: 91108524a60d3c2bfecd137f9fcbc74b (MD5) Previous issue date: 2011-03-04 / Financiadora de Estudos e Projetos / In this work, based on the article The Codazzi Equation for Surfaces by Juan A. Aledo, José M. Espinar and José A. Gálvez [8], we describe some applications of an abstract theory for the Codazzi equation on surfaces. This theory deals with abstract pairs of quadratic forms on a surface, in particular the so-called Codazzi pairs, for which the Codazzi equation is satisfied. Among the applications, we give a proof of an abstract version of a classical theorem due to Hopf on immersed spheres in Euclidean space R3 with constant mean curvature. Other applications are proofs of Liebmann s theorem on complete surfaces with constant Gaussian curvature in R3 and of Grove s theorem on the rigidity of ovaloids. We also study the existence of holomorphic quadratic differentials associated with Codazzi pairs. This is used, in particular, in the classification of complete embedded elliptic special Weingarten surfaces of non-minimal type in R3 whose Gaussian curvature does not change sign. / Nesta dissertação, baseada no artigo The Codazzi Equation for Surfaces de Juan A. Aledo, José M. Espinar e José A. Gálvez [8], descrevemos algumas aplicações de uma teoria abstrata para a equação de Codazzi em superfícies. Nessa teoria são estudados de modo abstrato, pares de formas quadráticas definidos em uma superfície satisfazendo certas propriedades, em particular os chamados pares de Codazzi, para os quais a equação de Codazzi é satisfeita. Dentre as aplicações, apresentamos uma demonstração de uma versão abstrata do clássico teorema de Hopf sobre superfícies homeomorfas à esfera imersas em R3 com curvatura média constante. Outras aplicações são demonstrações do teorema de Liebmann sobre superfícies completas em R3 com curvatura Gaussiana constante positiva e do teorema de Grove sobre rigidez dos ovalóides. Estudamos também a existência de diferenciais quadráticas holomorfas associadas a pares de Codazzi, as quais são usadas, em particular, na classificação das superfícies de Weingarten especiais elípticas de tipo não-mínimo, completas e mergulhadas em R3, cuja curvatura Gaussiana não muda de sinal.
4

Equação de Codazzi em variedades bidimensionais

Souza, Lauriano de Souza e 10 June 2013 (has links)
Submitted by Lúcia Brandão (lucia.elaine@live.com) on 2015-12-14T18:54:48Z No. of bitstreams: 1 Dissertação - Lauriano de Souza e Souza.pdf: 1554279 bytes, checksum: 3d210e441f37fec27501116cf45440b3 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2016-01-20T18:29:57Z (GMT) No. of bitstreams: 1 Dissertação - Lauriano de Souza e Souza.pdf: 1554279 bytes, checksum: 3d210e441f37fec27501116cf45440b3 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2016-01-20T18:30:51Z (GMT) No. of bitstreams: 1 Dissertação - Lauriano de Souza e Souza.pdf: 1554279 bytes, checksum: 3d210e441f37fec27501116cf45440b3 (MD5) / Made available in DSpace on 2016-01-20T18:30:51Z (GMT). No. of bitstreams: 1 Dissertação - Lauriano de Souza e Souza.pdf: 1554279 bytes, checksum: 3d210e441f37fec27501116cf45440b3 (MD5) Previous issue date: 2013-06-10 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / In this work , we talk about an abstract theory for the equation of two-dimensional varieties ( or just surfaces) , namely the theory of pairs of Codazzi , spatial forms R³ , S³ and H³ . Precisely, we generalize some classical theorems of the theory of surfaces and unified proof of other results, seemingly unrelated . In addition , we study the existence of holomorphic quadratic differential , high estimates and apply the abstract theory that the classification of surfaces of special Weingarten elliptical , complete and dipped in R³ , whose Gaussian curvature does not change sign. / Neste trabalho, dissertamos sobre uma teoria abstrata para a equação de variedades bidimensionais (ou simplesmente superfícies), a saber, a teoria dos pares de Codazzi, formas espaciais R³, S³ e H³. Precisamente, generalizamos alguns teoremas clássicos da teoria de superfícies e unificamos a prova de outros resultados, aparentemente não relacionados. Além disso, estudamos a existência de diferenciais quadráticas holomorfas, estimativas de altura e aplicamos a referida teoria abstrata na classificação das superfícies de Weingarten especiais elípticas, completas e mergulhadas em R³, cuja curvatura Gaussiana não muda de sinal.
5

Analysis of several non-linear PDEs in fluid mechanics and differential geometry

Li, Siran January 2017 (has links)
In the thesis we investigate two problems on Partial Differential Equations (PDEs) in differential geometry and fluid mechanics. First, we prove the weak L<sup> p</sup> continuity of the Gauss-Codazzi-Ricci (GCR) equations, which serve as a compatibility condition for the isometric immersions of Riemannian and semi-Riemannian manifolds. Our arguments, based on the generalised compensated compactness theorems established via functional and micro-local analytic methods, are intrinsic and global. Second, we prove the vanishing viscosity limit of an incompressible fluid in three-dimensional smooth, curved domains, with the kinematic and Navier boundary conditions. It is shown that the strong solution of the Navier-Stokes equation in H<sup> r+1</sup> (r &GT; 5/2) converges to the strong solution of the Euler equation with the kinematic boundary condition in H<sup> r</sup>, as the viscosity tends to zero. For the proof, we derive energy estimates using the special geometric structure of the Navier boundary conditions; in particular, the second fundamental form of the fluid boundary and the vorticity thereon play a crucial role. In these projects we emphasise the linkages between the techniques in differential geometry and mathematical hydrodynamics.
6

Extensions supersymétriques des équations structurelles des supervariétés plongées dans des superespaces

Bertrand, Sébastien 06 1900 (has links)
No description available.

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