Normal forms with exponentially small remainder: application to homoclinic connections for the reversible 02+i? resonance
Résumé
In this Note we explain how the normal form theorem already established (Iooss and Lombardi, J. Differential Equations, in press) for analytic vector fields with a semi-simple linearization enables to prove the existence of homoclinic connections to exponentially small periodic orbits for reversible analytic vector fields admitting a 02+i? resonance where the linearization is precisely not semi simple.