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arXiv 2001.02388cs.SC
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一元多项式多重结构的一个条件

A Condition for Multiplicity Structure of Univariate Polynomials

Hoon Hong, Jing Yang

摘要:

我们考虑的问题,找到一个条件的一元多项式具有给定的多重性结构时,不同的根的数量是给定的。众所周知,通过使用重复的参数gcd,这样的条件可以写成几个多项式方程和系数中的一个不等式的合取。在本文中,我们给出了一个新的条件,它不是基于重复的gcd。此外,还证明了该条件下多项式的个数是最优的,且多项式的次数比以前基于重复gcd的条件下的次数小。

英文摘要:

We consider the problem of finding a condition for a univariate polynomial having a given multiplicity structure when the number of distinct roots is given. It is well known that such conditions can be written as conjunctions of several polynomial equations and one inequation in the coefficients, by using repeated parametric gcd's. In this paper, we give a novel condition which is not based on repeated gcd's. Furthermore, it is shown that the number of polynomials in the condition is optimal and the degree of polynomials is smaller than that in the previous condition based on repeated gcd's.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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