Periodic and Subharmonic Solutions for a Class of Local Nonquadratic Second-Order Hamiltonian Systems

  title={Periodic and Subharmonic Solutions for a Class of Local Nonquadratic Second-Order Hamiltonian Systems},
  author={Qin Jiang and Sheng Ma},
  journal={2008 International Conference on Computer Science and Software Engineering},
In the paper, by the minimax methods in critical point theory, some solvability conditions of periodic and subharmonic solutions are obtained for a class of non-autonomous second order Hamiltonian systems when the Hamiltonian is a local nonquadratic assumption at infinity. 

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