期刊文献+

具有偏差变元的高阶Lienard方程周期解的存在性 被引量:1

The Existence of Periodic Solutions of Certain High Order Lienard Equation with Deviating Argument
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摘要 利用重合度理论中的延拓定理,讨论了一类具偏差变元高阶Lienard方程的周期解,在不需要∫T0p(t)dt=0的假设前提下,得到了周期解存在性的若干新结果,推广和改进了已有文献中的相关结论. By using the coincidence degree theory of Mawhin, we study the existence of periodic solutions of the Lienard-type equation x^(m) (t)+m-1∑i=1 fi(x(t-δi))x^(i) (t-δi)+g(t,x(t-τ(t)))=p(t) with deviating argument. Some new sufficient conditions of periodic solutions are obtained ridding of the condition ∫^T 0p(t)dt=0. The results have extended or improved the related reports in the literature.
出处 《甘肃科学学报》 2007年第2期40-45,共6页 Journal of Gansu Sciences
关键词 高阶Lienard方程 偏并变元 周期解 存在性 重舍度 Lienard-type equation deviating argument periodic solution existence coincidence degree
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  • 3R Xu, L S Chen, F L Hao. Positive Solutions of a Discrete Time Lotka-Volterra Type Food-chain Model with Delays[J]. Appl. Math. Comput, 2005,171 : 91-103.
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  • 6M Fan, K Wang. Periodic Solution of a Discrete Time Nonautonomous Ratio-Dependent Predator-prey Sys tem[J]. Math. Comput. Model, 2002,35:951-961.
  • 7R Y Zhang, Z C Chen,J Wu. Positive Periodic of a Single Species Discrete Population Model with Periodic Harvest/stock[J]. Comput. Math, Appl, 2002,39 : 477-485.

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