• On Hamiltonian potentials with cuartic polynomial normal variational equations 

    Acosta Humánez, Primitivo Belén; Blázquez Sanz, David; Vargas Contreras, Camilo (2008-08)
    Accés obert
    Here we find the complete family of two degree of freedom classical Hamiltonians with invariant plane $\Gamma=\{q_2=p_2=0\}$ whose normal variational equation around integral curves in $\Gamma$ is a generically a ...