Periodic solutions of some problems of 3-body type
On some results of Moser and of Bangert
Periodic solutions of hamiltonian systems of 3-body type
A variational construction of chaotic trajectories for a Hamiltonian system on a torus
A geometric criterion for the existence of chaotic trajectories of a Hamiltonian system with two degrees of freedom and the configuration space a torus is given. As an application, positive topological entropy is established for a double pendulum problem.
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