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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.
271

The standard model and beyond in noncommutative geometry /

Schelp, Richard Charles, January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 113-119). Available also in a digital version from Dissertation Abstracts.
272

Spectral geometry of the Riemann curvature tensor /

Stavrov, Iva, January 2003 (has links)
Thesis (Ph. D.)--University of Oregon, 2003. / 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.
273

Constructions of Lie Groupoids

Li, Travis Songhao 10 January 2014 (has links)
In this thesis, we develop two methods for constructing Lie groupoids. The first method is a blow-up construction, corresponding to the elementary modification of a Lie algebroid along a subalgebroid over some closed hypersurface. This construction may be specialized to the Poisson groupoids and Lie bialgebroids. We then apply this method to three cases. The first is the adjoint Lie groupoid integrating the Lie algebroid of vector fields tangent to a collection of normal crossing hypersurfaces. The second is the adjoint symplectic groupoid of a log symplectic manifold. The third is the adjoint Lie groupoid integrating the tangent algebroid of a Riemann surface twisted by a divisor. The second method is a gluing construction, whereby Lie groupoids defined on the open sets of an appropriate cover may be combined to obtain global integrations. This allows us to construct and classify the Lie groupoids integrating the given Lie algebroid. We apply this method to the aforementioned cases, albeit with small differences, and characterize the category of integrations in each case.
274

The classical theory of affine connections.

Auer, J. W. January 1966 (has links)
The theory of affine connections is, roughly speaking, a generalization of certain concepts of parallelism and differentiation defined in plane differential geometry, to the differential geometry of surfaces, and, more generally, to the geometry of differentiable manifolds. It is the purpose of this essay to relate the various stages of this generalization, and to present the essentials of the classical theory of affine connections on a differentiable manifold. [...]
275

Constructions of Lie Groupoids

Li, Travis Songhao 10 January 2014 (has links)
In this thesis, we develop two methods for constructing Lie groupoids. The first method is a blow-up construction, corresponding to the elementary modification of a Lie algebroid along a subalgebroid over some closed hypersurface. This construction may be specialized to the Poisson groupoids and Lie bialgebroids. We then apply this method to three cases. The first is the adjoint Lie groupoid integrating the Lie algebroid of vector fields tangent to a collection of normal crossing hypersurfaces. The second is the adjoint symplectic groupoid of a log symplectic manifold. The third is the adjoint Lie groupoid integrating the tangent algebroid of a Riemann surface twisted by a divisor. The second method is a gluing construction, whereby Lie groupoids defined on the open sets of an appropriate cover may be combined to obtain global integrations. This allows us to construct and classify the Lie groupoids integrating the given Lie algebroid. We apply this method to the aforementioned cases, albeit with small differences, and characterize the category of integrations in each case.
276

Comparison of geometry textbooks during the last fifty years

Gordon, Madonna Arbogast Hernly January 1940 (has links)
There is no abstract available for this thesis.
277

Analytic geometry of the hyperbolic plane

McAnally, John Ronald January 1964 (has links)
There is no abstract available for this thesis.
278

Quasi-empirical fictionalism as an approach to the philosophy of geometry : [a thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Master of Arts in Philosophy] /

Waygood, Scott. January 1900 (has links)
Thesis (M.A.)--Victoria University of Wellington, 2008. / Includes bibliographical references.
279

Partitioning problems in discrete and computational geometry

Zhao, Jihui, January 2010 (has links)
Thesis (Ph. D.)--Rutgers University, 2010. / "Graduate Program in Computer Science." Includes bibliographical references (p. 62-64).
280

Conjugate systems characterized by special properties of their ray congruences ...

Olson, Emma Julia, January 1934 (has links)
Thesis (Ph. D.)--University of Chicago, 1932. / Vita. Lithoprinted. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." Bibliography: p. 55-56.

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