Exploració per tema "KAM"
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KAM aspects of the quasi-periodic Hamiltonian Hopf bifurcation: summary of results
(s.n., 2007-08-20)
Text en actes de congrés
Accés obertIn this work we consider a 1:-1 non semi-simple resonant periodic orbit of a three-degrees of freedom real analytic Hamiltonian system. From the formal analysis of the normal form, it is proved the branching off a ... -
Strong nonlinear instability and growth of Sobolev norms near quasiperiodic finite gap tori for the 2D cubic NLS equation
(2022-03-03)
Article
Accés obertWe consider the defocusing cubic nonlinear Schrödinger equation (NLS) on the two-dimensional torus. The equation admits a special family of elliptic invariant quasiperiodic tori called finite-gap solutions. These are ...