Mathematics – Dynamical Systems
Scientific paper
2006-10-21
Northeast. Math. J. 21 (4) (2005), 447-464
Mathematics
Dynamical Systems
LaTeX, 17 pages
Scientific paper
In this paper we prove the persistence of hyperbolic invariant tori in generalized Hamiltonian systems, which may admit a distinct number of action and angle variables. The systems under consideration can be odd dimensional in tangent direction. Our results generalize the well-known results of Graff and Zehnder in standard Hamiltonians. In our case the unperturbed Hamiltonian systems may be degenerate. We also consider the persistence problem of hyperbolic tori on sub-manifolds.
Huang Qingdao
Liu Zhenxin
Yihe Dalai
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