Results 291 to 300 of about 1,542,711 (338)
Some of the next articles are maybe not open access.
1998
Abstract Our main purpose in the present chapter is to introduce the reader to the systematic study of those subsystems of the full system of ℛ4 lines of S3 which are of geometrical interest; but before doing so we need to look more closely at the way in which lines are represented by the ...
J G Semple, G T Kneebone
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Abstract Our main purpose in the present chapter is to introduce the reader to the systematic study of those subsystems of the full system of ℛ4 lines of S3 which are of geometrical interest; but before doing so we need to look more closely at the way in which lines are represented by the ...
J G Semple, G T Kneebone
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Complex Curves as Lines of Geometries
Results in Mathematics, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Belova, Olga +2 more
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Line Geometry, Sphere Geometry, Kinematics
2020A Dupin cyclide is a quartic and cyclic surface. It is the envelope of a one parameter family of spheres. In Lie’s model of sphere geometry, it is represented by a conic. Lie’s line-sphere-mapping maps a conic in Lie’s quadric to a conic on Plucker’s quadric which corresponds to a regulus in the manifold of lines.
Boris Odehnal +2 more
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Spinor Space and Line Geometry
Canadian Journal of Mathematics, 1951Synopsis. This is the first of two papers dealing with the projective theory of spinors. It contains the algebraic introduction to the projective spinor analysis which will be dealt with in the second paper.
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The Geometry of Decoupled Line Driven Winds
Astrophysics and Space Science, 1995Bjorkman & Cassinelli (1993) have proposed a mechanism that is expected to produce strong equatorial focusing of the radiation-driven winds from rapidly-rotating B stars. Here the possibility of the decoupling of the stellar radiation field and the outflow is considered.
John M. Porter, Janet E. Drew
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Geological Society, London, Special Publications, 2016
Abstract A branch line is the line of intersection between two hard-linked fault planes, or between two parts of a single fault plane of more complex geometry. Of interest is whether they provide any information about the kinematic development of the fault system to which they belong.
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Abstract A branch line is the line of intersection between two hard-linked fault planes, or between two parts of a single fault plane of more complex geometry. Of interest is whether they provide any information about the kinematic development of the fault system to which they belong.
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2001
The geometry of lines occurs naturally in such different areas as sculptured surface machining, computation of offsets and medial axes, surface reconstruction for reverse engineering, geometrical optics, kinematics and motion design, and modeling of developable surfaces.
Pottmann, Helmut, Wallner, Johannes
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The geometry of lines occurs naturally in such different areas as sculptured surface machining, computation of offsets and medial axes, surface reconstruction for reverse engineering, geometrical optics, kinematics and motion design, and modeling of developable surfaces.
Pottmann, Helmut, Wallner, Johannes
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On point-line geometry and displacement
Mechanism and Machine Theory, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Yi, Ting, Kwun-Lon
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2008
Practical application of geometric algorithms is hindered by data imprecision. One of the primitive elements in geometry is the concept of a line. We investigate what is the right way to model imprecise lines, and present algorithms to compute bounds on the solution to linear programming or vertical extent problems on a set of imprecise lines.
Löffler, Maarten, Kreveld, Marc van
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Practical application of geometric algorithms is hindered by data imprecision. One of the primitive elements in geometry is the concept of a line. We investigate what is the right way to model imprecise lines, and present algorithms to compute bounds on the solution to linear programming or vertical extent problems on a set of imprecise lines.
Löffler, Maarten, Kreveld, Marc van
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2010
Point-line geometries are just rank two geometries, and so inherit the concepts of morphism and cover from the last chapter. The symmetry between the two types is broken by the concept of a subspace, which treats points differently from lines. A new graph, the point-collinearity graph, is useful in describing geometric properties.
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Point-line geometries are just rank two geometries, and so inherit the concepts of morphism and cover from the last chapter. The symmetry between the two types is broken by the concept of a subspace, which treats points differently from lines. A new graph, the point-collinearity graph, is useful in describing geometric properties.
openaire +1 more source