摘要
给出几个关于二次系统极限环之唯一性的新判别法．方法是利用积分直线．
おn this paper, several new criterions for the uniqueness of the limit cycle of the quadratic system have been given. The method is to use the integral line.
出处
《纯粹数学与应用数学》
CSCD
1998年第1期85-87,共3页
Pure and Applied Mathematics
关键词
二次系统
极限环
唯一性
判别法
quadratic system
limit cycle
uniqueness
integral line1991 MSC 34C05
