Isolated elliptic fixed points for smooth Hamiltonians
Isolated elliptic fixed points for smooth Hamiltonians
复制标题
平滑哈密顿量的孤立椭圆不动点
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
M. Saprykina
中科院分区:
文献类型:
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作者:
B. Fayad;M. Saprykina
We construct on $R^{2d}$, for any $d geq 3$, smooth Hamiltonians having an elliptic equilibrium with an arbitrary frequency, that is not accumulated by a positive measure set of invariant tori. For $dgeq 4$, the Hamiltonians we construct have not any invariant torus of dimension $d$. Our examples are obtained by a version of the successive conjugation scheme {it `a la} Anosov-Katok.