本文对 N.Lvinson,O.K.Smith 定理用Филиппов方法(见文[1])给以改进的证明.将极限环的存在性、唯一性问题归结为一个辅助......

运用时间映射证明了二阶Liénard方程x″+f(x)x′+g(t,x)=0在一定的条件下周期解的存在性....

利用重合度理论中的延拓定理讨论一类时滞Liénard方程(x)+f(x)(x)+g(∫0-rx(t+s)dm(s))=p(t)的周期解问题. 获得了存在周期解的单......

Lienard型振子极限环的摄动一迭代解法@林洁贤......

Some sharp sufficient conditions for generalized Lienard systems to have positive or negative semi-orbits which do not c......

Homoclinic solutions were introduced for a prescribed mean curvature Lienard p-Laplacian equation with a deviating argum......

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