Supported by NSFC(No.11126100);the Youth Science and Technology Innovation Fund of Nanjing Agricultural University(No.KJ2010025);the Jiangsu Overseas Research&Tranning Program for University Prominent Young&Middle-aged Teachers and Presidends
本文证明了带小参数扰动的Van der Pol方程周期解的存在性和稳定性.主要通过构造周期函数空间上的若干算子,应用巴拿赫空间上的压缩映像原理,对线性变分方程的特征指数做分析得到结论.