%0 Journal Article
%T THE EXISTENCE OF THE PERIODIC SOLUTIONS OF SOME FUNCTIONAL DIFFERENTIAL EQUATIONS WITH INFINITE DELAY<br>无穷时滞泛函微分方程周期解的存在性
%A Jiong Yu WU
%A <br>伍炯宇
%J 系统科学与数学
%D 1999
%I 
%X In this paper, we discuss the equations Using Mawhin's degree method, under some hypotheses which are simple and easy to verify,the existence of the periodic solutions of (1), (2) is given.
%K Infinite delay
%K periodic solution
%K Mawhin degree<br>无穷时滞
%K 周期解
%K Mawhin度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=0CD45CC5E994895A7F41A783D4235EC2&aid=BA59B1B1BF4962756B4F9AEEA373A772&yid=B914830F5B1D1078&vid=2A8D03AD8076A2E3&iid=CA4FD0336C81A37A&sid=6E5881F2FFE5E466&eid=C6AE92CFF8716BDC&journal_id=1000-0577&journal_name=系统科学与数学&referenced_num=0&reference_num=0