摘要：In this paper, by using some different asymptotically linear conditions from those previously used in Hamiltonian systems, we obtain the existence of nontrivial homoclinic orbits for a class of second order Hamiltonian systems by the variational method. MSC:37J45, 37K05, 58E05.
关键词：homoclinic orbits ; second order Hamiltonian systems ; asymptotically linear ; variational method
