Elliptic fixed points with an invariant foliation: some facts and more questions
Elliptic fixed points with an invariant foliation: some facts and more questions
复制标题
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
中科院分区:
文献类型:
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作者:
Alain Chenciner;David Sauzin;Shanzhong Sun;Qiaoling Wei
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?