Multiplicity of Periodic Solutions for Second Order Hamiltonian Systems with Asymptotically Quadrati

• 作 者: Peng LIU Fei GUO
• 机 构: School of Mathematics, Tianjin University, Tianjin 300354, P.R.China
• 出 处: 数学学报（英文版）
• 发表日期: 2020年1期
• 关键词: Second order Hamiltonian systems asymptotically quadratic conditions Fountain Th

A class of second order non-autonomous Hamiltonian systems with asymptotically quadratic conditions is considered in this paper.Using Fountain Theorem,one multiplicity result of periodic solutions is obtained,which improves some previous results.