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Enumerating minimal connected dominating sets in graphs of bounded chordality

机译:枚举有界脊下标志图中的最小连接的主导集合

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摘要

Listing, generating or enumerating objects of specified type is one of the principal tasks in algorithmics. In graph algorithms one often enumerates vertex subsets satisfying a certain property. We study the enumeration of all minimal connected dominating sets of an input graph from various graph classes of bounded chordality. We establish enumeration algorithms as well as lower and upper bounds for the maximum number of minimal connected dominating sets in such graphs. In particular, we present algorithms to enumerate all minimal connected dominating sets of chordal graphs in time O(1.7159^n), of split graphs in time O(1.3803^n), and of AT-free, strongly chordal, and distance-hereditary graphs in time O^*(3^{n/3}), where n is the number of vertices of the input graph. Our algorithms imply corresponding upper bounds for the number of minimal connected dominating sets for these graph classes.
机译:列出,生成或枚举指定类型的对象是算法学的主要任务之一。在图算法中,人们经常枚举满足某种特性的顶点子集。我们研究了有界和弦的各种图类的输入图的所有最小连通控制集的枚举。我们为此类图中的最小连接支配集的最大数量建立枚举算法以及上下限。特别是,我们提出了一种算法来枚举时间为O(1.7159 ^ n)的弦图的所有最小连通主导集合,时间为O(1.3803 ^ n)的分裂图以及无AT,强弦和距离遗传的所有最小连通控制集。时间为O ^ *(3 ^ {n / 3})的图形,其中n是输入图形的顶点数。我们的算法暗示了这些图类的最小连通支配集的数量的相应上限。

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