不变环面的持久性与Nekhoroshev的一个定理
On persistence of invariant tori and a theorem by Nekhoroshev
摘要:
本文给出了N.N. Nekhoroshev讨论了具有$n$自由度的Hamilton系统和$s$对合运动积分,其中$1 \le s \le n$ .这样的定理确保持久性的$s$维不变环面适当的非退化条件下推广Poincaré的条件下的Floquet乘子。
英文摘要:
We give a proof of a theorem by N.N. Nekhoroshev concerning Hamiltonian systems with $n$ degrees of freedom and $s$ integrals of motion in involution, where $1 \le s \le n$. Such a theorem ensures persistence of $s$-dimensional invariant tori under suitable nondegeneracy conditions generalizing Poincaré's condition on the Floquet multipliers.
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