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arXiv 0807.0131math.CA
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某些实多项式系统的等时性条件

Isochronicity conditions for some real polynomial systems

Islam Boussaada

摘要:

本文主要研究线性中心受多项式扰动的等时性。研究了线性中心受四次和五次多项式扰动时的等时性,发现了几个新的等时中心,对于齐次等时扰动,给出了一个首次积分和一个线性化坐标变换.此外,还考虑了一类Abel多项式系统.直到10度的调查,我们证明了存在一个唯一的isoerase中心。这些结果是使用基于浦部定理的计算机实现建立的。

英文摘要:

This paper focuses on isochronicity of linear center perturbed by a polynomial. Isochronicity of a linear center perturbed by a degree four and degree five polynomials is studied, several new isochronous centers are found. For homogeneous isochronous perturbations, a first integral and a linearizing change of coordinates are presented. Moreover, a family of Abel polynomial systems is also considered. By investigations until degree 10 we prove the existence of a unique isochronous center. These results are established using a computer implementation based on Urabe theorem.

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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