一类5次系统高次奇点的中心焦点判定  

Determining center or focus for a class of systems of order 5 with a higher-order critical point

作　　者：刘一戎[1] 章丽娜[1] 

机构地区：[1]浙江师范大学数理与信息工程学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2008年第1期17-22,共6页Journal of Zhejiang Normal University:Natural Sciences

基　　金：国家自然科学基金资助项目(10771196)

摘　　要：对一类具高次奇点O(0,0)的实平面5次微分自治系统,计算出原点的前9个焦点量公式;同时,给出了一类5次系统的前7个赤道环量.For a class of real planar differential point, the first 9 focal values were evaluated. As autonomous systems of order 5 with a higher-order critical a corollary, the first 7 values of equator cycle for a class of systems of order 5 were presented.

关 键 词：高次奇点 无穷远点 焦点量 赤道环量 

分 类 号：O175.12[理学—数学]