• Invariant manifolds of L_3 and horseshoe motion in the restricted three-body problem 

      Barrabés Vera, Esther; Ollé Torner, Mercè (2005)
      Article
      Accés obert
      In this paper, we consider horseshoe motion in the planar restricted three-body problem. On one hand, we deal with the families of horseshoe periodic orbits (which surround three equilibrium points called L3, L4 and L5), ...
    • Persistence of homoclinic orbits for billiards and twist maps 

      Bolotin, S.; Delshams Valdés, Amadeu; Ramírez Ros, Rafael (2003)
      Article
      Accés obert
      We consider the billiard motion inside a C2-small perturbation of a ndimensional ellipsoid Q with a unique major axis. The diameter of the ellipsoid Q is a hyperbolic two-periodic trajectory whose stable and unstable ...