English

Explicit estimates on the measure of primary KAM tori

Dynamical Systems 2016-12-07 v1

Abstract

From KAM Theory it follows that the measure of phase points which do not lie on Diophantine, Lagrangian, "primary" tori in a nearly--integrable, real--analytic Hamiltonian system is O(ε)O(\sqrt{\varepsilon}), if ε\varepsilon is the size of the perturbation. In this paper we discuss how the constant in front of ε\sqrt{\varepsilon} depends on the unperturbed system and in particular on the phase--space domain.

Keywords

Cite

@article{arxiv.1612.01903,
  title  = {Explicit estimates on the measure of primary KAM tori},
  author = {Luca Biasco and Luigi Chierchia},
  journal= {arXiv preprint arXiv:1612.01903},
  year   = {2016}
}