Meccanica

, Volume 27, Issue 4, pp 281–284 | Cite as

A note on uniqueness of the normal form for quasi-integrable systems

  • Jan Herczyński
Article

Abstract

We provide a simple argument that at non-resonant actions the normal form for a quasi-integrable Hamiltonian system, as defined by von Zeipel-Poicaré and Lie perturbation algorithms, is unique.

Key words

Hamiltonian systems Normal form 

Sommario

Si fornisce una semplice dimostrazione dell'unicità della forma normale di un sistema hamiltoniano quasi-integrabile, come definito dagli algoritmi perturbativi di VonZeipel-Poincarè e Lie.

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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Jan Herczyński
    • 1
  1. 1.Dipartimento di MatematicaUniversità di BolognaBolognaItaly

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