Vertex transversals that dominate
نویسندگان
چکیده
For any graph, there is a largest integer k such that given any partition of the vertex set with at most k elements in each class of the partition, there is transversal of the partition that is a dominating set in the graph. Some basic results about this parameter, the partition domination number, are obtained. In particular, it is shown that its value is 2 for the two-dimensional infinite grid, and that determining whether a given vertex partition admits a dominating transversal is NP-complete, even for a graph which is a simple path. The existence of various dominating transversals in certain partitions in regular graphs is studied as well.
منابع مشابه
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ورودعنوان ژورنال:
- Journal of Graph Theory
دوره 21 شماره
صفحات -
تاریخ انتشار 1996