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arXiv 1012.0079math.DS
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常椭圆奇异扰动与同宿轨道的持续性

Normally Elliptic Singular Perturbations and Persistence of Homoclinic Orbits

Nan Lu, Chongchun Zeng

摘要:

我们考虑一个动力系统,可能是无限维的或非自治的,具有快和慢的时间尺度是振荡的高频率在快的方向。我们首先推导并证明了慢变量的极限系统。假设一个稳定状态持续存在,我们构造了稳定的,不稳定的,中心稳定的,中心不稳定的,和中心流形的大小为O(1)阶的稳定状态,并给出他们的领导阶近似。最后,利用这些工具,我们研究了这类正态椭圆型奇异扰动问题同宿解的持久性。

英文摘要:

We consider a dynamical system, possibly infinite dimensional or non-autonomous, with fast and slow time scales which is oscillatory with high frequencies in the fast directions. We first derive and justify the limit system of the slow variables. Assuming a steady state persists, we construct the stable, unstable, center-stable, center-unstable, and center manifolds of the steady state of a size of order O(1) and give their leading order approximations. Finally, using these tools, we study the persistence of homoclinic solutions in this type of normally elliptic singular perturbation problems.

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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