Implicitization of differential rational parametric equations
โ Scribed by Xiao-Shan Gao
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 257 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0747-7171
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, we propose algorithms for the following problems in the implicitization of a set of differential rational parametric equations P. (1) To find a characteristic set for the implicit prime ideal of P. (2) To find a canonical representation for the image of P. (3) To decide whether the parameters of P are independent, and if not, to re-parameterize P so that the new parametric equations have independent parameters. (4) To compute the inversion maps of P, and as a consequence, to decide whether P is proper. If the implicit variety is of dimension one and P is not proper, to find a proper re-parameterization for P.
๐ SIMILAR VOLUMES
A generalized projective implicitization theorem is presented that can be used to solve the implicitization of rational parametric curves and surfaces in an affine space. The Groebner bases technique is used to implement the algorithm. The algorithm has the advantages that it can handle base points
We reconduct the computation of the equations defining a union V of parametric varieties, up to a given degree d, to the computation of the equations, of degree โค d, vanishing on a finite set of points of V . If V is general this gives a new algorithm for implicitizing V . We have compared the imple