利用临界点理论研究非自治Hamilton系统周期解的存在性.在具有超线性增长非线性项时.根据对称山路定理,得到了系统无穷多个周期解存在的充分条件.
By using critical point theory,the authors studied the existence of periodic solutions for non-autonomous Hamihoni- an systems with superlinear nonlinearity. Some sufficient conditions for existence of infinitely many periodic solutions are obtained via the symmetric mountain pass theorem.