85 search results - page 10 / 17 » Graphs of Bounded Treewidth can be Canonized in AC1 |
193
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FOCS
1998
IEEE
15 years 10 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
140
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FCT
2005
Springer
15 years 11 months ago
2005
Springer
Graph homomorphism, also called H-coloring, is a natural generalization of graph coloring: There is a homomorphism from a graph G to a complete graph on k vertices if and only if ...
169
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SODA
2010
ACM
16 years 3 months ago
2010
ACM
Many NP-hard problems can be solved efficiently when the input is restricted to graphs of bounded tree-width or clique-width. In particular, by the celebrated result of Courcelle,...
156
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EVOW
2007
Springer
16 years 5 days ago
2007
Springer
Many instances of NP-hard problems can be solved efficiently if the treewidth of their corresponding graph is small. Finding the optimal tree decompositions is an NP-hard problem a...
181
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WDAG
2010
Springer
15 years 4 months ago
2010
Springer
Abstract. Since in general it is NP-hard to solve the minimum dominating set problem even approximatively, a lot of work has been dedicated to central and distributed approximation...