一类具复杂偏差变元的微分方程的周期解存在性

应用重合度理论研究了一类具复杂偏差变元的二阶Liénard微分方程的周期解存在性问题,改进和推广了以往文献的相关结果.

一类带有p-Lapcaian算子Liénard型泛函微分方程周期解的存在性

主要利用Mawhin连续性定理,讨论了一类具有多个变时滞的p-Lapcaian型中立型Liénard泛函微分方程:(φp(x(t)-cx(t-σ))')'+f(x(t))x'(t)+∑ni=1gi(t,x(t-τi(t)))=e(t)周期解的存在性并举例说明结果的有效性。

具非初等焦点的分段光滑Liénard系统的极限环分支(英文)

本文研究了一类具有两种类型非初等焦点的分段光滑Liénard系统,并通过应用一阶Melnikov函数的方法来获得这两种情况对应的Hopf分支中出现的极限环最大个数的下界.

Stochastic Liénard Equations with State-Dependent Switching

This work focuses on stochastic Lienard equations with state-dependent switching. First, the existence and uniqueness of a strong solution are obtained by successive construction method. Next, strong Feller property is proved by introducing certain auxiliary processes and using the Radon-Nikodym derivatives and truncation arguments. Based on these results, positive Harris recurrence and exponential ergodicity are obtained under the Foster-Lyapunov drift conditions. Finally, examples using van der Pol equations are presented for illustrations, and the corresponding Foster-Lyapunov functions for the examples are constructed explicitly.