摘要
研究一类分四片的非光滑平面系统,讨论其中2类特殊系统的Hopf分支情况,并证明至多存在4个极限环,同时给出极限环的存在条件。
In the present paper,a class of non-smooth planar system with four zones is studied.Moreover,we discuss Hopf bifurcation of two special cases and obtain at most four limit cycles under some conditions.
出处
《丽水学院学报》
2011年第2期6-10,共5页
Journal of Lishui University