Conic sections in space defined by intersection conditions.
Schröcker, Hans-Peter (2005)
Beiträge zur Algebra und Geometrie
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Displaying similar documents to “The intersection conics of six straight lines.”
Conic sections in space defined by intersection conditions.
On the size of maximal caps in .
Metsch, K. (2003)
Advances in Geometry
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Generalized triangular grids in digital geometry.
Nagy, Benedek (2004)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Extending Nearaffine Planes to Hyperbola Structures
Kinga Cudna-Salmanowicz, Jan Jakóbowski (2007)
Bulletin of the Polish Academy of Sciences. Mathematics
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H. A. Wilbrink [Geom. Dedicata 12 (1982)] considered a class of Minkowski planes whose restrictions, called residual planes, are nearaffine planes. Our study goes in the opposite direction: what conditions on a nearaffine plane are necessary and sufficient to get an extension which is a hyperbola structure.
A universal construction for projective Hjelmslev planes of level
G. Hanssens, H. Van Maldeghem (1989)
Compositio Mathematica
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Some Generalization of Nearaffine Planes
Jan Jakóbowski (2005)
Bulletin of the Polish Academy of Sciences. Mathematics
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There are three kinds of Benz planes: Möbius planes, Laguerre planes and Minkowski planes. A Minkowski plane satisfying an additional axiom is connected with some other structure called a nearaffine plane. We construct an analogous structure for a Laguerre plane. Moreover, our description is common for both cases.
The Cayley-Spottiswoode coordinates of a conic in 3-space
H. S. Ruse (1935)
Compositio Mathematica
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On minimum size blocking sets of external lines to a quadric in .
Biondi, P., Lo Re, P.M.L., Storme, L. (2007)
Beiträge zur Algebra und Geometrie
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Quartic threefolds containing two skew double lines
A. Alzati, M. Bertolini (1990)
Rendiconti del Seminario Matematico della Università di Padova
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A characterization of the Hall planes by planar and nonplanar involutions.
Johnson, N.L. (1989)
International Journal of Mathematics and Mathematical Sciences
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On elations in semi-transitive planes.
Johnson, N.L. (1982)
International Journal of Mathematics and Mathematical Sciences
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Approximation in the space of planes: applications to geometric modeling and reverse engineering.
Martin Peternell, Helmut Pottmann (2002)
RACSAM
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Se estudia la aproximación en el espacio de planos. Se introduce una medida de la distancia en este espacio, con la que pueden resolverse problemas de modelado con superficies desarrollables mediante algoritmos de aproximación de curvas. Además, el reconocimiento y reconstrucción de caras planas en nubes de puntos aparecen como un problema "clustering" en el espacio de planos. La aplicabilidad práctica de estos resultados se muestra en varios ejemplos.