5473 search results - page 125 / 1095 » On the graph isomorphism problem |
177
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DAM
2006
15 years 7 months ago
2006
In a previous work, we proposed a new integer programming formulation for the graph coloring problem which, to a certain extent, avoids symmetry. We studied the facet structure of...
187
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CORR
2010
Springer
15 years 5 months ago
2010
Springer
A celebrated theorem of Savitch [Sav70] states that NSPACE(S) ⊆ DSPACE(S2 ). In particular, Savitch gave a deterministic algorithm to solve ST-CONNECTIVITY (an NL-complete probl...
185
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SODA
2010
ACM
16 years 4 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,...
204
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ISPAN
2008
IEEE
16 years 1 months ago
2008
IEEE
Intuitively, a signed graph is a graph in which every edge is labeled with a + or − sign. For each edge, its sign represents the mode of the relationship between the vertices it...
160
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COCOON
2007
Springer
16 years 1 months ago
2007
Springer
It is shown that the traveling salesman problem for graphs