Dia: Dimecres, 9 de desembre de 2020
Lloc: ONLINE https://eu.bbcollab.com/guest/e72c23cf69754e1ca7555595a9a0f2bf
A càrrec de: Josep Maria Mondelo, Universitat Autònoma de Barcelona
Títol: Flow map parameterization methods for invariant tori in Hamiltonian systems
Resum: The goal of this talk is to present a methodology for the computation of invariant tori in Hamiltonian systems combining flow map methods, parameterization methods, and symplectic geometry. While flow map methods reduce the dimension of the tori to be computed by one (avoiding Poincare maps), parameterization methods reduce the cost of a single step of the derived Newton-like method to be proportional to the cost of a FFT. Symplectic properties lead to some magic cancellations that make the methods work. The multiple shooting version of the methods are applied to the computation of invariant tori and their invariant bundles around librational equilibrium points of the Restricted Three Body Problem. The invariant bundles are the first order approximations of the corresponding invariant manifolds, commonly known as the whiskers, which are very important in the dynamical organization and have important applications in space mission design.
Joint work with Àlex Haro.
Last updated: Fri Dec 4 19:19:51 2020