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出典:Wikipedia
出典:『Wikipedia』 (2011/06/16 02:42 UTC 版)
In graph theory, a BF-graph is an oriented hypergraph where each hyper-arc is either a B-arc or a F-arc. A B-arc is a hyperarc with a head of size 1 and a F-arc is a hyperarc with a tail of size 1. A hypergraph with only B-arcs is a B-graph and a hypergraph with only F-arcs is a F-graph.
BF-graph