UNIQUENESS OF LIMIT CYCLE FOR A CLASS OF QUARTIC SYSTEM ACCOMPANYING WITH QUADRATIC SYSTEM  

作　　者：Zhan Qingyi(College of Computer and Information Science,Fujian Agriculture and Forestry University,Fuzhou 350002) Xie Xiangdong(Dept. of Math.,Ningde Teachers College,Ningde 352100,Fujian) Wu Chengqiang(College of Math. and Computer Science,Fuzhou University,Fuzhou 350002) 

出　　处：《Annals of Differential Equations》2008年第2期239-245,共7页微分方程年刊（英文版）

基　　金：This work was supported by the Natural Science Foundation of Fujian (Z0511052);the Foundation of Fujian Education Bureau (JA04158, JA04274);the Foundation of Developing Science and Technology of Fuzhou University (2005-QX-20).

摘　　要：In this paper,we consider a class of quartic system,which is more general and realistic than the quartic accompanying system. Consequently,we obtain sufficient conditions concerning the uniqueness of limit cycle as well as some other in-depth conclusions.In this paper,we consider a class of quartic system,which is more general and realistic than the quartic accompanying system. Consequently,we obtain sufficient conditions concerning the uniqueness of limit cycle as well as some other in-depth conclusions.

关 键 词：accompanying system limit cycle UNIQUENESS 

分 类 号：O153.3[理学—数学]