Cograph

In graph theory, a cograph, or complement-reducible graph, or P₄-free graph, is a graph that can be generated from the single-vertex graph K₁ by complementation and disjoint union. That is, the family of cographs is the smallest class of graphs that includes K₁ and is closed under complementation and disjoint union.

单词	Cograph
释义	Cograph 英语百科 Cograph In graph theory, a cograph, or complement-reducible graph, or P₄-free graph, is a graph that can be generated from the single-vertex graph K₁ by complementation and disjoint union. That is, the family of cographs is the smallest class of graphs that includes K₁ and is closed under complementation and disjoint union.
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