On Minimum Feedback Vertex Sets in Bipartite Graphs and Degree-Constraint Graphs
نویسندگان
چکیده
We consider the minimum feedback vertex set problem for some bipartite graphs and degree-constrained graphs. We show that the problem is linear time solvable for bipartite permutation graphs and NP-hard for grid intersection graphs. We also show that the problem is solvable in O(n2 log6 n) time for n-vertex graphs with maximum degree at most three. key words: 3-regular graph, bipartite permutation graph, feedback vertex set, grid intersection graph, nonseparating independent set
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ورودعنوان ژورنال:
- IEICE Transactions
دوره 96-D شماره
صفحات -
تاریخ انتشار 2013