In this paper, we show that under the condition that the minimum degree is at least 3, the iterated line digraph of a super-arc-connected digraph is super-connected.
本文证明了，在最小度至少为3的前提下超弧连通有向图的迭代线图是超点连通的。
By using Boolean matrix, some results of power convergence exponent of line digraph are given.
采用布尔矩阵，得到了线有向幂敛指数的一些结果。
By using the matrix representation of a digraph, some results about the index of convergence and period of a line digraph are obtained.
采用有向图的矩阵表示，得到了线有向图的幂敛指数和周期的有关结果。
By using the matrix representation of a digraph, some results about the index of convergence and period of a line digraph are obtained.
采用有向图的矩阵表示，得到了线有向图的幂敛指数和周期的有关结果。
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