42 search results - page 4 / 9 » Approximating the Maximum Independent Set and Minimum Vertex... |
ISAAC
2007
Springer
14 years 1 months ago
2007
Springer
The class of graphs where the size of a minimum vertex cover equals that of a maximum matching is known as K¨onig-Egerv´ary graphs. K¨onig-Egerv´ary graphs have been studied ex...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
SPAA
2009
ACM
14 years 2 months ago
2009
ACM
We study deterministic, distributed algorithms for two weak variants of the standard graph coloring problem. We consider defective colorings, i.e., colorings where nodes of a colo...
SIAMCOMP
2002
13 years 7 months ago
2002
A set of vertices in a graph is a dominating set if every vertex outside the set has a neighbor in the set. The domatic number problem is that of partitioning the vertices of a gra...
DAM
2010
13 years 7 months ago
2010
We introduce H -join decompositions of graphs, indexed by a fixed bipartite graph H . These decompositions are based on a graph operation that we call H -join, which adds edges be...