digraph

n.

两字母发一音，连字；

1. If a digraph reversal is present, one letter is most likely a vowel.
   如果出现了反向双字母组合，其中的一个字母很可能是元音。

The skew energy of a digraph
Signed digraph based multiple fault diagnosis
Line Digraph Iterations and the (d, k) Digraph Problem
Line Digraph Iterations and the (d, k) Digraph Problem
Digraph measures: Kelly decompositions, games, and orderings
Digraph measures: Kelly decompositions, games, and orderings
The transitive closure of a random digraph
On the sum of all distances in a graph or digraph
A characterization of the minimum cycle mean in a digraph ☆
Global stabilization of complex networks with digraph topologies via a local pinning algorithm ☆