97-142 Laurent Niederman
Dynamic around a chain of simple resonant tori in nearly integrable Hamiltonian systems (151K, TeX) Mar 24, 97
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Abstract. By an application of the K.A.M. theory, we derive an accurate normal form valid in the vicinity of partially hyperbolic tori which arise close to simple resonances in nearly integrable Hamiltonian systems. This allows precise estimates on the times of transition around the stable and unstable manifolds of these tori. Hence, these normal forms provide an efficient tool to compute the speed of drift of orbits shadowing a chain of hyperbolic tori associated to a simple resonant curve in the action space.

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