21. The Bruhat graph is a directed graph related to the ( strong ) Bruhat order. 22. Since the determination of marital property is rule based, it is implemented using directed graphs . 23. The basic concept I have is some sort of directed graph model with lazy evaluation. 24. The above definition is extended to directed graphs . 25. An abstract dependency graph is a directed graph , a graph of vertices connected by one-way edges. 26. This example includes, of course, all directed graphs . 27. It can be visualized as a directed graph of data streams, being transformed by MIMO blocks. 28. Strictly speaking, the " web of trust " is actually a directed graph rather than a network. 29. One proof of this hardness result uses a reduction from the Hamiltonian path problem in directed graphs . 30. Let G be a n-node directed graph where all the weights on edges are powers of two.