查询词典 planar graph

Any graph which can be redrawn in this way without crossings is called a planar graph,such graphs being of the utmost importance in the theory of graphs.

任何能够按这种方式重画为一个没有交叉线的图称为平面图，这种图在图论中极为重要。

Any graph which can be redraen in this way without crossing is called a planar graph,such graphs being of the utmost importance in the theory of graphs.

一个图如果能够按这种方式重画为一个没有交叉线的图成为平面图，这种图在图论中极端重要。

A Halin graph is a planar graph consisting of a tree with no vertex of degree two and a cycly connecting the leaves of the tree. We write .

Halin图是一个在平面上由内部点度数大於2的树及连接树的叶子的圈所组成的平面图，我们将Halin图用来表示。

To resolve the algorithm of the chromatic number of a graph,a special method is adopt to remember the coloring process of graph,and the method does different jobs for four given cases during the coloring process.The adjacent strong edge chromatic number of join graph of star and path is obtained.

为了解决图的邻强边染色问题中一个图的色数算法问题，通过特别的方法来记图的染色过程，同时分4种情况讨论了星和路联图的邻强边染色问题，指出在染色过程中给定的4种情况的染色方法各不相同，并通过对图的着色得到了星和路联图的邻强边色数。

In fact, researching the symmetry property of the Coset graph is more significant than the Cayleygraph, because every vertex-transitive graph is always some Coset graph of its full automorphism group.

关于陪集图对称性的研究其实较Cayley图更具有普遍的意义，因为任何一个点传递图都是其全自同构群的某个陪集图。

Further, we can also define if a Coset graph is a graph representation, we note it GR for short, that is, the relevant group is exactly equal to the full automorphism group of the Coset graph.

甚至，我们也可以定义一个陪集图是一个图表示，简称GR，即相应的群是否恰等于它的这个陪集图的全自同构群。

In fact, researching the symmetry of Sabidussi coset graphs has more general significance than doing so for the Cayley graph because every vertex-transitive graph is always some coset graph of its full automorphism group.

关于陪集图对称性的研究其实较Cayley图更具有普遍的意义，因为任何一个点传递图都是其全自同构群的某个陪集图。

For example, when G is a cubic graph, tree, complete graph, or balanced complete bipartite graph, and some values of k.

譬如当图形G是一个立方图、一个树、一个完全图、或者是一个均衡完全二部图，以及某些特定的k值。

According to the some properties of the differentiation ,I found that the symmetry of the graph is closely related to the first-order differentiation and the second-order differentiation .from this ,I search for a way to identify the symmetry of the functional graph for the direct line or the central symmetry of the functional graph for the some dot .

摘 要：利用导数的一些性质，发现了函数图象的对称性与函数的一阶、二阶导数的密切关系。根据这些关系，找到了一种判定函数图象是否关于某一直线对称或关于某点成中心对称的方法。

Graph theory is one of the unified modelling methods. Based on the traditional linear graph theory, the paper proposed the Extensible Elementary Linear Graph method, which could realize composable simulation for multidiscipline system, and perform inter-energy domain expression in a unified way.

图论方法是多领域统一建模方法之一，本文基于线性图建模方法，研究和发展了一种模块化的多领域建模方法——可扩展单元线性图复合仿真方法，以实现跨能量域的统一模型表达。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。