Convergence versus integrability in Poincare-Dulac normal form

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We show that, to find a Poincare-Dulac normalization for a vector field is the same as to find and linearize a torus action which preserves the vector field. Using this toric characterization and other geometrical arguments, we prove that any local analytic vector field which is integrable in the non-Hamiltonian sense admits a local convergent Poincare-Dulac normalization. These results generalize the main results of our previous paper from the Hamiltonian case to the non-Hamiltonian case. Similar results are presented for the case of isochore vector fields.
2nd version, substantial revision, new title

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Dynamical Systems, Mathematical Physics, 37G05, 70K45, 34C14, 70GXX

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http://salesiana.dossiersoluciones.com/handle/123456789/61522

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0105193
 http://arxiv.org/abs/math/0105193

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arXiv