arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0503688math.NAcs.NAmath.AG
收藏

逐方程求解多项式系统

Solving Polynomial Systems Equation by Equation

Andrew J. Sommese, Jan Verschelde, Charles W. Wampler

AI总结:

提出使用对角同伦方法逐方程求解多项式系统,通过数值延拓计算解集交集,并利用单方程特例提高路径跟踪算法性能。

摘要:

通过一种称为对角同伦的数值延拓方法,我们可以计算多项式系统两个正维解集的交集。本文提出将这种对角同伦作为求解一般解集交集过程的关键步骤。特别感兴趣的是其中一个集合由单个多项式方程定义的特殊情况。这导致了一种算法,通过逐个引入方程来寻找多项式方程组解集的数值表示。初步计算实验表明,这种方法可以利用多项式系统的特殊结构,从而提高路径跟踪算法的性能。

英文摘要:

By a numerical continuation method called a diagonal homotopy we can compute the intersection of two positive dimensional solution sets of polynomial systems. This paper proposes to use this diagonal homotopy as the key step in a procedure to intersect general solution sets. Of particular interest is the special case where one of the sets is defined by a single polynomial equation. This leads to an algorithm for finding a numerical representation of the solution set of a system of polynomial equations introducing the equations one-by-one. Preliminary computational experiments show this approach can exploit the special structure of a polynomial system, which improves the performance of the path following algorithms.

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。

↑