【摘要】 本文讨论了一类高维非自冶系统周期解的存在性问题,得到了判别周期解存在的充分条件,最后给出了应用的例子。更多还原

【Abstract】 In this paper, we have discussed the existence of periodic solutionof a class of high order non-autonomic system, and obtained sufficie-nt condition of verifying the existence of periodic solution. At theend, the applied example is given,更多还原