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- nonlinear polynomial systems 多项式非线性系统
- 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 two systems of government are polar opposites. 这两种政体正好相反。
- The intelligent fitting method for binary nonlinear polynomials was presented in order to obtain a high precise and simple form explicit equation for calculating the friction factor. 为了得到形式简单、精度高的计算摩擦因数的显式方程,提出了二元非线性多项式智能拟合法。
- 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
- 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
- The two systems are, in effect, identical. 这两种制度实际上一模一样。
- 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
- Asymptotic Stability for Nonlinear Singularly Perturbed Systems P. 非线性奇摄动系统的渐进稳定性。
- A complete quartic polynomial consists of 15 terms. 一个完整四次的多项式由15项组成。
- The principle of superposition does not apply to nonlinear systems. 迭加原理不适用于非线性系统。
- Nearly Differential Characteristic Set for Differential Polynomial System 微分多项式系统的近微分特征列集
