Measure and Capacity of Wandering Domains in Gevrey Near-Integrable Exact Symplectic Systems

Measure and Capacity of Wandering Domains in Gevrey Near-Integrable Exact Symplectic Systems
Author :
Publisher : American Mathematical Soc.
Total Pages : 122
Release :
ISBN-10 : 9781470434922
ISBN-13 : 147043492X
Rating : 4/5 (92X Downloads)

Book Synopsis Measure and Capacity of Wandering Domains in Gevrey Near-Integrable Exact Symplectic Systems by : Laurent Lazzarini

Download or read book Measure and Capacity of Wandering Domains in Gevrey Near-Integrable Exact Symplectic Systems written by Laurent Lazzarini and published by American Mathematical Soc.. This book was released on 2019-02-21 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wandering domain for a diffeomorphism of is an open connected set such that for all . The authors endow with its usual exact symplectic structure. An integrable diffeomorphism, i.e., the time-one map of a Hamiltonian which depends only on the action variables, has no nonempty wandering domains. The aim of this paper is to estimate the size (measure and Gromov capacity) of wandering domains in the case of an exact symplectic perturbation of , in the analytic or Gevrey category. Upper estimates are related to Nekhoroshev theory; lower estimates are related to examples of Arnold diffusion. This is a contribution to the “quantitative Hamiltonian perturbation theory” initiated in previous works on the optimality of long term stability estimates and diffusion times; the emphasis here is on discrete systems because this is the natural setting to study wandering domains.


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