Moving Planes and Singular Points of Rational Parametric Surfaces

Details Moving Planes and Singular Points of Rational Parametric Surfaces Moving Planes and Singular Points of Rational Parametric Surfaces

2009-09-15

arxiv.org/abs/0909.2810v2

Mathematics

Numerical Analysis

13 pages

Scientific paper

In this paper we discuss the relationship between the moving planes of a rational parametric surface and the singular points on it. Firstly, the intersection multiplicity of several planar curves is introduced. Then we derive an equivalent definition for the order of a singular point on a rational parametric surface. Based on the new definition of singularity orders, we derive the relationship between the moving planes of a rational surface and the order of singular points. Especially, the relationship between the $\mu$-basis and the order of a singular point is also discussed.

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