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- 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。
- 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。
- 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。
- LIMIT CYCLES OF THE EQUATOR IN A QUINTIC POLYNOMIAL SYSTEM 一类五次系统的赤道极限环问题
- 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
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- higher-degree degenerate polynomial system 高次退化多项式系统
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Polynomial system of degree seven 七次多项式系统
- mixed trigonometric polynomial systems 混合三角多项式方程组
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
