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- 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。
- Eigenvalue method is one of the fundamental methods that solve polynomial system. 特征值方法是求解多项式方程组的基本方法之一。
- 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.
- In this thesis, the limit cycles bifurcated from some kinds of polynomial systems are investigated using the methods of bifurcation theory and qualitative analysis. 本文利用分支理论和定性分析的方法,借助于计算机等辅助工具对几类多项式系统的极限环分支问题进行了研究。
- mixed trigonometric polynomial systems 混合三角多项式方程组
- The Number of Limit Cycles in a Family of Polynomial Systems 一类多项式扰动系统的极限环个数
- The two systems of government are polar opposites. 这两种政体正好相反。
- LIMIT CYCLES OF THE EQUATOR IN A QUINTIC POLYNOMIAL SYSTEM 一类五次系统的赤道极限环问题
- higher-degree degenerate polynomial system 高次退化多项式系统
- Polynomial system of degree seven 七次多项式系统
- Synthetic Elimination Method for Solving a Polynomial System of Equations 求解多项式方程组的综合消元法
- Study of center focus decision problem for a type of polynomial system 一类多项式系统中心焦点判定问题的研究
- Nearly Differential Characteristic Set for Differential Polynomial System 微分多项式系统的近微分特征列集
- Stability of Equator for a Class of Odd Number Degree Polynomial System 一类奇数次多项式系统赤道环的稳定性
- The two systems are, in effect, identical. 这两种制度实际上一模一样。
- NOTE ON FORMULATION OF GEOMETRIC PROPERTIES OF A POLYNOMIAL SYSTEM 多项式系统几何性质的注记
- Study on Limit Cycles for a Class of Infinite Polynomial System 一类无穷次多项式系统极限环研究
- Integrability condition of Second Order Polynomial System 二阶多项式系统的可积条件
- The Planar Quintic Polynomial Systems with a Four-point Heteroclinic Cycle and a Homoclinic Cycle Coexist 具有四点异宿环和同宿环共存的平面五次多项式系统