Characters of transitive index of graph are given in this paper by applying some methods in graph theory.
利用图论方法，给出了图的传递指数若干性质，并给出了传递指数的上界与下界。
Since all elements on the primary diagonal are 1s and the dimensions are less than 2006, the graph with A2006 as its adjacency matrix is the transitive closure of the graph represented by a.
由于主对角线上的元素都是1，而且矩阵的阶小于2006，所以为a2006邻接矩阵的图就是由A表示的图的传递闭包。
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