| 科研成果 | <p> Na Zhang, Binxiang Dai, Yuming Chen, Positive periodic solutions of nonautonomous functional differential systems.  Journal of Mathematical Analysis and Applications ,333(2):667-678,2007.            <br>Na Zhang, Binxang Dai, Xiangzheng Qian,  Periodic solutions for a class of higher-dimension functional differential equations with impulses.  Nonlinear Analysis: Theory, Methods & Applications , 68(3):629-638,2008.    <br></p>
 | 科研项目 | 国家自然科学基金面上项目,2011.1-2013.12,36万,PnP问题解的几何分布及其数学机械化方法(第二)<br> |