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Current Colloquia & Seminars

  1. Graduate Student Seminar

    Location: MSRI: Baker Board Room
    Created on Sep 07, 2018 01:47 PM PDT
  2. Hamiltonian Seminar: Analytic invariant curves for analytic twist map

    Location: MSRI: Simons Auditorium
    Speakers: Abed Bounemoura (Université de Paris IX (Paris-Dauphine))

    Yoccoz proved that Bruno's arithmetic condition is optimal for the analytic linearization of a circle diffeomorphism close to a rotation. We will explain how to use this result to prove that the same condition is optimal for the analytic preservation of quasi-periodic invariant curves of twists maps, as well as new questions in this context. We will also discuss partial results in higher dimension.

    Updated on Oct 11, 2018 10:00 AM PDT