English

KAM Theorems for Multi-scale Torus

Dynamical Systems 2023-01-03 v2

Abstract

In present paper, from the viewpoint of physical intuition we introduce a Hamiltonian system with multiscale rotation, which describes many systems, for example, the forced pendulum with fast rotation, weakly coupled NN-oscillators with quasiperiodic force and so on. We study the persistence of invariant tori for this Hamiltonian system, and establish some KAM type results including the isoenergetic type. As consequences, we can show that Boltzmann's ergodicity hypothesis is also not true for this Hamiltonian system.

Keywords

Cite

@article{arxiv.2212.14212,
  title  = {KAM Theorems for Multi-scale Torus},
  author = {Weichao Qian and Yixian Gao and Yong Li},
  journal= {arXiv preprint arXiv:2212.14212},
  year   = {2023}
}

Comments

33pages

R2 v1 2026-06-28T07:55:44.172Z