• Non-integrability of some hamiltonians with rational potentials 

      Acosta Humánez, Primitivo Belén; Blázquez Sanz, David (2008-09-01)
      Article
      Accés obert
      In this paper we give a mechanism to compute the families of classical hamiltonians of two degrees of freedom with an invariant plane and normal variational equations of Hill-Schr\"odinger type selected in a suitable ...