Not So Easy Problems For Tree Decomposable Graphs
Seclected and revised papers of Proceedings of ICDM 2008, International Conference on Discrete Mathematics, June 6-10, 2008, Mysore, India RMS Lecture Notes Series no. 13, pp. 179-190. Ramanujan Mathematical Society, 2010
Abstract:We consider combinatorial problems that can be solved in polynomial time for graphs of bounded treewidth but where the order of the polynomial that bounds the running time is expected to depend on the treewidth bound. First we review some recent results for problems regarding list and equitable colorings, general factors, and generalized satisfiability. Second we establish a new hardness result for the problem of minimizing the maximum weighted outdegree for orientations of edge-weighted graphs of bounded treewidth.