%0 Journal Article
%T Focal Quantities Algorithms and Center Conditions Deduction<br>焦点量算法与中心条件推导
%A Sang Bo
%A Zhu Siming
%A <br>桑波
%A 朱思铭
%J 数学物理学报(A辑)
%D 2008
%I 
%X For general cases, this paper gives recursive formulas for computing focal quantities by return map method, and brings in an algorithm for computing and simplication of focal quantities by formal series method. For a class of polynomial systems, an algorithm for deriving time-reversible conditions is given, and the time-reversible conditions for a quintic polynomial system are obtained.
%K Focal quantities
%K Return map
%K Formal series
%K Center conditions<br>焦点量
%K 后继函数
%K 形式级数
%K 中心条件.
%K 焦点量
%K 量算法
%K 中心条件
%K Deduction
%K Center
%K Conditions
%K Algorithms
%K 系统时间
%K Maple
%K 形式级数法
%K 递推公式
%K 计算
%K 后继函数法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=4DB553CDB5F521D8C921082E5C95EC80&aid=636E280A258D8BC78C17636BF407FB6D&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=F260CE035846B3B8&eid=DABEF202280E7EF1&journal_id=1003-3998&journal_name=数学物理学报(A辑)&referenced_num=0&reference_num=16