The definition of the k-perfect hyper-graph is given,which is an extension of the perfect graph.
定义了k-完美超图,使其成为完美图的推广。
参考来源 - 几个特殊超图在完美图上的应用
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Perfect graph
abstract:The [[Paley graph of order 9, colored with three colors and showing a clique of three vertices. In this graph and each of its induced subgraphs the chromatic number equals the clique number, so it is a perfect graph.