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Implicitization of differential rational parametric equations

机译:微分有理参数方程的隐式表示

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摘要

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.
机译:在本文中,我们针对一组微分有理参数方程P的隐式提出了以下问题的算法。(1)为P的隐式素理想求特征集。(2)为P的典范理想表示。 (3)判断P的参数是否独立,如果不是,则重新参数化P,以使新的参数方程式具有独立的参数。 (4)计算P的反演图,并因此确定P是否合适。如果隐式变量的维数为1并且P不正确,则为P寻找适当的重新参数化。

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