Explicit estimates on the measure of primary KAM tori
arXiv:1612.01903
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 , if is the size of the perturbation. In this paper we discuss how the constant in front of depends on the unperturbed system and in particular on the phase--space domain.