In this thesis, we investigate the limit cycle problem into two topics of planar autonomous quadratic system and polynomial Lienard system of degree 4.
本文分别研究了两类平面系统的极限环问题。
参考来源 - 两类平面系统的极限环问题·2,447,543篇论文数据，部分数据来源于NoteExpress
Finally the existence of the limit cycle is obtained by using the stability theory of the weak focus.
最后根据细焦点的稳定性判断出极限环的存在性。
The calculation method of finding the limit cycle suppression time is proposed also and the calculation results are co...
本文还提出了一种求极限环平均抑制时间的计算方法，计算结果与实验数据相符。
The calculation method of finding the limit cycle suppression time is proposed also and the calculation results are consiste…
本文还提出了一种求极限环平均抑制时间的计算方法，计算结果与实验数据相符。
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