paper

Linking and closed orbits

arXiv:1305.2799 · doi:10.1007/s12188-016-0118-5

Abstract

We show that the Lagrangian of classical mechanics on a Riemannian manifold of bounded geometry carries a periodic solution of motion with rescribed energy, provided the potential satisfies an asymptotic growth condition, changes sign, and the negative set of the potential is non-trivial in the relative homology.

We weakened the assumption to be of bounded geometry

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