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- Xianfeng Chen and Zhizhen Qian, Uniqueness of limit cycles of some high degree polynomial systems, Journal of Shanghai JiaoTong University, Supp. I (1998), 16--20 (in Chinese). 陈贤峰，一类带高次自反馈非线性控制系统的镇定性，上海交大学报;(7)35(2001);1097--1099.
- An exploited predatory-prey system is discussed.The conclusions about nonexistence,existence and uniqueness of limit cycles are obtained by using qualitative and bifurcation methods.The significance of the conclusions are interpreted at the same time. 讨论了一类食饵种群被开发的两种群捕食系统.;运用定性分析和分支方法给出了该系统极限环的不存在性、存在性和惟一性等结论;并对相应的生态学意义作了说明
- The Existence Uniqueness of Limit Cycles for a Class of Plane Five-Degree System 一类平面五次系统的极限环的存在唯一性
- The Existence and Uniqueness of Limit Cycles of a Class of Plane Differential Systems 一类平面微分系统极限环的存在唯一性
- Uniqueness of Limit Cycle in Oregonator 俄勒冈振子极限环的唯一性
- Existence and Uniqueness of Limit Cycles for a Class of Higher Polynomial System 一高次多项式系统极限环的存在性和惟一性
- Instability shows itself frequently in the form of limit cycles. （非线性系统）的不稳定性通常表现为极限环的形式。
- uniqueness of limit cycles 极限环的惟一性
- In this paper, we propose a predator-prey model in immune response, and analyze the model mathematically.The conditions for the existence and uniqueness of limit cycles in the model are proved; 摘要本文建立了一个有关免疫反应的捕食者－被食者模型，并对模型进行了一定的数学分析，证明瞭模型存在极限环和存在唯一极限环的条件；
- Uniqueness of Limit Cycle for Preys Group with Constant Harvesting Rate 一类被捕食种群具有常数收获率极限环的唯一性
- A Study of the Existence and Uniqueness of Limit Cycle for a Type of Odd Order Systems 一类奇次系统极限环的存在唯一性研究
- Existence and uniqueness of limit cycle for a cubic Kolmogorov system with constant rate between predator and prey delivering 一类食饵种群具有常数存放率的三次Kolmogorov系统的极限环的存在性和唯一性
- Distribution of limit cycles for a class of higher-degree degenerate planar polynomial systems of codimension two is discussed. 摘要讨论了一类余维2的高次退化平面多项式系统的极限环分布，证明了此系统至多存在3个极限环。
- In this paper, the bifurcation of limit cycles for a quartic polynomial system is investigated. 摘要研究一类四次系统的极限环分枝问题。
- Then by using Poincare-Bendixson theorem sufficient conditions for the existence of limit cycles are obtained. 在此基础上，利用微分方程的环域定理获得了所述系统存在极限环的条件。
- uniqueness of limit cycle 极限环的唯一性
- In this article, the center conditions, isochronous center conditions and bifurcation of limit cycles at infinity for a class of fifth system are investigated. 摘要研究一类五次系统无穷远点的中心、拟等时中心条件与极限环分支问题。
- CHEN Liu-juan,SUN Jian-hua.The uniqueness of a limit cycle for a class of Holling models with functional response [J].Acta Mathematica Sinica,2002,45(2):383-388. [3]陈柳娟;孙建华.;一类Holling功能性反应模型极限环的唯一类[J]
- As far as the number of limit cycles bifurcated from 3 fine focal points of quartic system is concerned, the result is good. 就三个不同细焦点分枝出极限环的结论来说，该结果是好的。
- The algorithm revises the reinforcement signal and improves the exploration policy to overcome the negative effect of limit cycles in the inverted pendulum system. 算法采用修正强化信号和改进探索策略的方法克服极限环对倒立摆系统的影响。
