INTRACTABILITY OF CLIQUE-WIDTH PARAMETERIZATIONS
INTRACTABILITY OF CLIQUE-WIDTH PARAMETERIZATIONS
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DOI:
10.1137/080742270
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发表时间:
2010-01-01
影响因子:
1.6
通讯作者:
Saurabh, Saket
中科院分区:
文献类型:
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作者:
Fomin, Fedor V.;Golovach, Petr A.;Saurabh, Saket
We show that Edge Dominating Set, Hamiltonian Cycle, and Graph Coloring are W[1]-hard parameterized by clique-width. It was an open problem, explicitly mentioned in several papers, whether any of these problems is fixed parameter tractable when parameterized by the clique-width, that is, solvable in time g(k) . n(O(1)) on n-vertex graphs of clique-width k, where g is some function of k only. Our results imply that the running time O(n(f(k))) of many clique-width-based algorithms is essentially the best we can hope for (up to a widely believed assumption from parameterized complexity, namely FPT not equal W[1]).