1) quintic algebra curve
五次代数曲线
1.
The graph classification for a class of quintic algebra curves is carried out by means of the software Mathe-matica and the qualitative analysis method of planar dynamical system.
用平面动力系统定性分析方法和数学软件Mathematica对五次代数曲线的图形进行分类。
2) quintic curve
五次曲线
3) cubic algebraic curve
三次代数曲线
1.
G~2-continuous cubic algebraic curve with the given tangent polygon;
与给定切线多边形相切的G~2连续的三次代数曲线
4) quadratic algebraic curve
二次代数曲线
1.
This paper first summarizes the researches on this topic,and then proposes a new method for curve modeling with quadratic algebraic curve based on pure geometric constraints that involve control points and tangent directions.
然后根据三次代数曲线的构造方法,提出一种新的二次曲线的构造方法,该方法通过几何量如控制点和切线来控制二次代数曲线的形状。
5) Four algebraic curve solution
四次代数曲线解
6) cubic algebric curve solution
三次代数曲线解
1.
In this paper,nonexistence of limit cycle for the c ubic system in plane with two cubic algebric curve solutions y2=(ax3+bx)2 was proved by qualitative analysis method,however,the singular closed orbit can exist in some cases.
用定性分析的方法,证明了具有两条三次代数曲线解y2=(ax3+bx)2的平面三次系统无极限环,但可以有奇闭轨。
补充资料:Hesse曲线(代数曲线的)
Hesse曲线(代数曲线的)
Hessian (algebraic curve)
11油限曲线(代数曲线的)【H台自11(.妙如允.抖e);recc咖,T~aaa,即r药pa一吸ee二o‘二p.助蓝] n次代数曲线(司罗玩水c~)的He丈祀曲线就是其极二次曲线能分裂为两条直线的点的集合,也是第一极曲线的二重点构成的集合.n次非奇异曲线的He丈七曲线是一条次数为3伪一2)、类为3(n一2)(3n一7)的曲线.设介O是这条n次曲线的齐次坐标方程,关丘=刁:f/刁xi刁、,则它的He丈犯曲线的定义方程为 !不:关:五,} }五:关:五31=0. }人,人2人3}特征不等于3时的三次非奇异曲线的H既七曲线与这条曲线交于9个通常拐点.因O.H改e(l 844)而得名. A .E.H困阳。B撰
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参考词条