a Institute of Mathematics, AMSS, Chinese Academy of Sciences, 100080 Beijing, PR China b Equipe de Mathématiques (UMR CNRS 6623), Université de Franche-Comté, 16, route de Gray, 25030 Besancon, France
Abstract:
In this paper we prove the existence and multiplicity of homoclinic orbits for first order Hamiltonian systems of the form