偶图

In this paper, we study a necessary and sufficient condition that complete bipartite graph exists factors.

讨论了完全偶图存在 [1，2 ]因子的充分必要条件，并给出了 [1，2 ]因子的计数

E〓 is a perfect matching of G and G·E〓 is a bipartite graph.

2E〓是G的一个完美匹配，并且G·E〓是一个偶图。

This paper presents the formula of enumeration of DS-factors of a complete bipartite graph .

本文研究完全偶图 Km，n的DS-因子计数，给出了Km，n的DS-因子计数公式。

Bipartite graph is a special model in the Graph Theory.

摘 要：偶图是图论中的一种特殊模型。

Here, K3 is the complete graph of three verticies, and K1,3 is the complete bipartite graph with 1,3 vertices.

在这里， K3是完整的图的三个verticies ，和K1 ， 3是完全偶图与1，3顶点。

A complete bipartite graph is a simple bipartite graph with bipartition.

完全偶图是具有二分类的简单偶图。

In this paper the capacity of tree-flower in Edmonds theorem of graph theory is extended to minimum covering points and a computing formula of minimum covering points for non-dual graph is introduced.

文中把图论里Edmonds定理的树花容量扩展为最小复盖点，并得到了计算非偶图最小复盖点数的公式。

Let G be a connected and simple graph with p order, the complement graph G is the union of a complete bipartite graph K n,m and an empty graph K.

设G为p 阶连通简单图，其补图G为完全偶图Kn，m 及空图K的并，笔者利用完全偶图的谱的特性，获得了图G的特征根分

A bigraphical representation of a Seal calculus without replication is provided in this paper,and structural correspondence and operational correspondence between the Seal calculus and its bigraphical representation are analyzed.

文中给出了一种不带复制进程表达式的Seal演算的偶图表示，分析了该Seal演算与其偶图表示间的结构对应和操作对应。

In Chapter 2, we characterize the bipartite graphs with given number of vertices and edges which have the smallest and largest values of the sum of squares of degrees. Meanwhile, we present some bipartite graphs attaining extreme values.

在论文的第二章里，给出了n个顶点m条边的偶图的度平方和的最大值和最小值，同时给出了达到极值的一种极图的构造方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。