Abstract
We consider perturbations of integrable Hamiltonian systems in the neighborhood of normally parabolic invariant tori. Using the techniques of KAM-theory we prove that there exists a canonical transformation that puts the Hamiltonian in normal form up to a remainder of weighted order 2d + 1. And some dynamical consequences are obtained.
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The work is supported by the National Natural Science Foundation of China (19925107) and the Special Funds for Major State Basic Research Projects of China (973 Projects)
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Wang, Z.G. Normal Form for Families of Hamiltonian Systems. Acta Math Sinica 23, 1199–1216 (2007). https://doi.org/10.1007/s10114-005-0844-6
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DOI: https://doi.org/10.1007/s10114-005-0844-6