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Normal forms, stability and splitting of invariant manifolds II. Finitely differentiable Hamiltonians
Bounemoura, Abed
Centre de Recerca Matemàtica
This paper is a sequel to ``Normal forms, stability and splitting of invariant manifolds I. Gevrey Hamiltonians", in which we gave a new construction of resonant normal forms with an exponentially small remainder for near-integrable Gevrey Hamiltonians at a quasi-periodic frequency, using a method of periodic approximations. In this second part we focus on finitely differentiable Hamiltonians, and we derive normal forms with a polynomially small remainder. As applications, we obtain a polynomially large upper bound on the stability time for the evolution of the action variables and a polynomially small upper bound on the splitting of invariant manifolds for hyperbolic tori.
517 - Anàlisi
Varietats (Matemàtica)
Formes (Matemàtica)
Hamilton, Sistemes de
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21 p.
Centre de Recerca Matemàtica
Prepublicacions del Centre de Recerca Matemàtica;1133

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