Elliptic fixed points with an invariant foliation: some facts and more questions

Elliptic fixed points with an invariant foliation: some facts and more questions
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具有不变叶状结构的椭圆不动点:一些事实和更多问题

DOI:
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发表时间:
2022
影响因子:
1.4
通讯作者:
Qiaoling Wei
Qiaoling Wei
中科院分区:
数学3区
文献类型:
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作者:
Alain Chenciner;David Sauzin;Shanzhong Sun;Qiaoling Wei

文献摘要

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我们解决以下问题:设 F : (R2, 0) → (R2, 0) 为在非共振椭圆不动点 0 邻域中定义的解析局部微分同胚,并设 Φ. 为正规形式 N 的形式共轭。假设 F 使以 0 为圆心的叶状结构保持不变,那么 Φ 和 N 的解析性质是什么?
We address the following question: let F : (R2, 0) → (R2, 0) be an analytic local.diffeomorphism defined in the neighborhood of the nonresonant elliptic fixed point 0 and let Φ.be a formal conjugacy to a normal form N. Supposing F leaves invariant the foliation by circles.centered at 0, what is the analytic nature of Φ and N?