关于无C4或菱形图
On graphs without a C4 or a diamond
摘要:
我们考虑一类(C4,钻石)-自由图,在这个类中的图不包含C4或钻石作为诱导子图。我们提供了一个有效的识别算法,这类。我们计算了无(C4,diamond)图的最大团数和n-顶点无标号(C4,diamond)图的数目。我们还给出了一个有效的算法,找到一个最大的团在更一般的类(房子,钻石)-免费的图形。
英文摘要:
We consider the class of (C4, diamond)-free graphs; graphs in this class do not contain a C4 or a diamond as an induced subgraph. We provide an efficient recognition algorithm for this class. We count the number of maximal cliques in a (C4, diamond)-free graph and the number of n-vertex, labeled (C4, diamond)-free graphs. We also give an efficient algorithm for finding a largest clique in the more general class of (house, diamond)-free graphs.
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