Projective Geometry
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. A perspectiva no olhar: ciência e arte do renascimento
Recent academic works comes approaching fear from the perspective and as the three-dimensional space can be represent two-dimensionality. This work propose contribute in the pole of the view and in the pole of the know about the three-dimensional space across of arising from techniques of the Italian Renaissance. The inquiry gives-itself about the discovery
Publicado em: 2004
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14. Global projection of Rangel: um sistema de projeção do globo terrestre sobre um elipsóide / Global projection of rangel: a projection system of terrestrial globe on an ellipsoid
Este trabalho propõe uma nova metodologia matemática para a representação do globo terrestre sobre um elipsóide, capaz de viabilizar equações para o tratamento de posições geodésicas, georreferência e determinação de distâncias e ângulos, com precisão variável e continuidade das informações em todas as partes do elipsóide. O estudo foi de
Publicado em: 2002
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15. On the geometry of Poincaré's problem for one-dimensional projective foliations
Consideramos o problema de relacionar carateres geométricos extrínsecos de uma variedade projetiva lisa e irredutível, que é invariante por uma folheação holomorfa de dimensão um de um espaço projetivo complexo, a objetos geométricos associados à folheação.
Anais da Academia Brasileira de Ciências. Publicado em: 2001-12
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16. Fundamentos geometricos e algebricos da calibração e reconstrução tridimensional : aplicação na analise cinematica de movimentos humanos / Geometric and algebraic basis for calibra tion and threedimensional re construcion. application in the kinematic analysis of human movements
To get information such as position, orientation and size of the object of interest by measuring its image are the basis of the kinematic analysis of the human movement. Video cameras are frequently used for this purpose. The aim of this work is to study Geometric and AIgebraic concepts of the procedures used to calibrate the video cameras and of the reconst
Publicado em: 1999
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17. Calabi's conjecture and some new results in algebraic geometry
We announce a proof of Calabi's conjectures on the Ricci curvature of a compact Kähler manifold and then apply it to prove some new results in algebraic geometry and differential geometry. For example, we prove that the only Kähler structure on a complex projective space is the standard one.
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18. Continuous partition lattice
A continuous analogue to the partition lattices is presented. This is the metric completion of the direct limit of a system of embeddings of the finite partition lattices. The construction is analogous to von Neumann's construction of a continuous geometry over a field F from the finite-dimensional projective geometries over F.
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19. The left spectrum, the Levitzki radical, and noncommutative schemes.
This note contains a brief exposition of the basics of a noncommutative version of affine, quasi-affine, and projective algebraic geometry. In this version, to any associative ring (with unity) a quasi-affine (resp. affine) left scheme is assigned. The notion of the left spectrum of a ring plays the key role.