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Results tagged with directed-graphs
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user 145855
A directed graph is a graph with directed edges. Loops and 2-cycles are usually allowed. See also the tag *quiver*.
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Characterisation of walk-equivalent digraphs
This should work: $G$ is given by $A_G=\begin{bmatrix}0 & 1 &0 & 0\\0& 0 &1 &1 \\1 &0 &0 &0\\0 &0 &0 &0 \end{bmatrix}$ and $H$ given by $A_H=\begin{bmatrix}0 & 1 &0 & 0\\0& 0 &1 &0 \\0 &0 &0 &1\\1 &0 …
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