一类具有极限环(3,1)分布的二次微分系统的分支问题

Bifurcation Problem of a Quadratic Differential System with (3,1)Distribution of LC's

研究了一类二次系统的极限环的数目和分支问题 ,并给出了分支图 .

In this paper,the number of limit cycles and bifurcation problem of the quadratic system(0.1) is studied,and the bifurcation diagrams of this system in the (ε 1,ε 2)-plane and the (ε 1,ε 2,ε 3)-space are given.