%0 Journal Article
%T THE UNIQUE EXISTENCE OF PERIODIC SOLUTION FOR A CLASS OF ORDINARY DIFFERENTIAL EQUATION SYSTEMS AT RESONANCE<br>共振下一类常微分方程组周期解的唯一存在性
%A LI SHU-JIE
%A <br>李树杰
%J 系统科学与数学
%D 1986
%I 
%X Early in 1904,Hadamard 1] got the scale implicit function theorem of finite di-mensions.Then it was generalized to infinite dimensions.Here a new proof of this the-orem is given and used to discuss the unique existence of periodic solution for a classof ordinary differential eqcation systems at resonance.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=0CD45CC5E994895A7F41A783D4235EC2&aid=20E8229BAC80E46B904C5DDE9BFC4CDF&yid=4E65715CCF57055A&vid=B31275AF3241DB2D&iid=E158A972A605785F&sid=6A73B36E85DB0CE9&eid=28F9D9CF04F424FF&journal_id=1000-0577&journal_name=系统科学与数学&referenced_num=5&reference_num=0