Feedback Vertex Set in Mixed Graphs
نویسندگان
چکیده
A mixed graph is a graph with both directed and undirected edges. We present an algorithm for deciding whether a given mixed graph on n vertices contains a feedback vertex set (FVS) of size at most k, in time 2k!O(n). This is the first fixed parameter tractable algorithm for FVS that applies to both directed and undirected graphs.
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تاریخ انتشار 2011