{ "id": "math/0105193", "version": "v2", "published": "2001-05-23T17:37:07.000Z", "updated": "2002-03-13T19:26:36.000Z", "title": "Convergence versus integrability in Poincare-Dulac normal form", "authors": [ "Nguyen Tien Zung" ], "comment": "2nd version, substantial revision, new title", "categories": [ "math.DS", "math-ph", "math.MP" ], "abstract": "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.", "revisions": [ { "version": "v2", "updated": "2002-03-13T19:26:36.000Z" } ], "analyses": { "subjects": [ "37G05", "70K45", "34C14" ], "keywords": [ "poincare-dulac normal form", "convergence", "local convergent poincare-dulac normalization", "integrability", "local analytic vector field" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2001math......5193T" } } }