<p>Using the saddle point theorem and the mountain pass theorem, together with the Morse index estimates and the Morse index iteration inequalities developed by Professor Yiming Long, periodic solutions with minimal period estimates have been considered for second-order mild superquadratic Hamiltonian systems.</p>

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Periodic solutions of second-order mild superquadratic Hamiltonian systems with minimal period estimates

  • Xiaofei Zhang,
  • Chungen Liu,
  • Benxing Zhou

摘要

Using the saddle point theorem and the mountain pass theorem, together with the Morse index estimates and the Morse index iteration inequalities developed by Professor Yiming Long, periodic solutions with minimal period estimates have been considered for second-order mild superquadratic Hamiltonian systems.