diameter of a connected graph 连通图直径
a simple connected graph 简单连通图
In this paper, the bond cover of a connected graph was studied.
对连通图的键覆盖进行了研究。
We shall see that a tree can be defined as a connected graph which contains no circuits.
我们将看到树可以定义为一个不包含回路的连通图。
Introduced in this paper is the forest graph of a connected graph which is a generalization of the tree graph.
本文中引进了连通图的森林图，它是树图的推广。
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