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arXiv math-ph/0506037math-phmath.CAmath.MP
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求二阶有理常微分方程初等一阶不变量的半算法

A semi-algorithm to find elementary first order invariants of rational second order ordinary differential equations

J. Avellar, L. G. S. Duarte, S. E. S. Duarte, L. A. C. P. da Mota

摘要:

本文提出了一种基于Darboux型程序\cite{ManMac,firsTHEOps1,secondTHEOps1}求二阶有理常微分方程初等首次积分的方法。除了实际的计算考虑,该方法将能够告诉我们(达到一定的多项式次数),如果SOODE有一个基本的第一积分,并在积极的情况下,通过求积找到它。

英文摘要:

Here we present a method to find elementary first integrals of rational second order ordinary differential equations (SOODEs) based on a Darboux type procedure \cite{ManMac,firsTHEOps1,secondTHEOps1}. Apart from practical computational considerations, the method will be capable of telling us (up to a certain polynomial degree) if the SOODE has an elementary first integral and, in positive case, finds it via quadratures.

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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