顶点

In the research of the crossing number of Cartesian products, there are s...

在交图的交叉数方向目前只给出了路径，圈以及星图与一些顶点数较少的图的交图的交叉数。

Therefore, for every perfect Lie algebra L(E_1,E_2,E_3) with v = 2, its uniersal central extension has the vertex operator represention.

于是，对于每一个perfect李代数L(E_1，E_2，E_3)，当v=2时它的泛中心扩张都存在顶点算子表示。

A new method was proposed for grindability comprehensive evaluation of engineering ceramic materials based on the digraph theory in the graph.

应用图论中的有向图理论，以材料磨削加工性属性为顶点，以各属性之间的相互关系为边，建立了陶瓷材料磨削加工性评价的有向图模型。

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

On the basis of Aumann,Meng Ya-qin and Ye Zheng-lin[13],Cuan-ying and Xue Ji-jun[16] have gained some conditions about characteristic polygon of the ruled surface,they used two Bezier curves in paralled plane as boundary curves to get ruled surface.

国内孟雅琴、叶正麟、爨莹、薛继军等人在Anmann方法的基础上，用位于两平行平面上的两条Bézier曲线作边界曲线，形成直纹面，并得到了它们可展时特征多边形顶点应该满足的条件。

The fats hold such vibrations in the physical form leading to a vibration that has enough molecules to support all lay lines, meridians and grid work rewoven within the etheric body, charka system, subtle bodies, light body or body double, and greater solar sized auric field.

18种盐形式，创造了与144个单音、双音、三音和四音光之语音调相关的神圣几何学能量运动。脂肪则维系肉体的振动，带来充足分子的振动来支持所有层面线条、顶点和晶格层在以太身体、脉轮系统、精微身体、光体或双体及更大的太阳大小金场中织就。

In this paper, we get the fractional chromatic number about several kinds of graphs. And according to these results we get the chromatic number on these graphs.

文中给出了一些图类的分数色数，并根据这些结果得到了其中一些图类的顶点色数。

In section three, the conception of the Peterson graph is incited and the fractional chromatic number and the chromatic number of one kind of them are given.

在第三部分中介绍了当k=2时的广义Peterson图的概念，给出了其中一类图的分数色数以及顶点色数。

One of graph edge coloring and graph total coloring problem, as well as whole graph chromatic number problem can be converted to graph vertex coloring to deal with problem.

其中图的边着色和图的全着色问题以及图的色数问题都可以转化为图的顶点着色问题进行处理。

We shall present some of the basic properties of the vertex and edge chromatic numbers.

我们将介绍顶点色数和边色数的一些基本性质。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。