754 search results - page 12 / 151 » Exact Algorithms for the Vertex Separator Problem in Graphs |
STOC
2010
ACM
14 years 1 months ago
2010
ACM
We consider the problem of maintaining a large matching and a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge in...
DAM
2011
13 years 3 months ago
2011
We study various optimization problems in t-subtree graphs, the intersection graphs of tsubtrees, where a t-subtree is the union of t disjoint subtrees of some tree. This graph cl...
STOC
2002
ACM
14 years 8 months ago
2002
ACM
The Minimum Vertex Cover problem is the problem of, given a graph, finding a smallest set of vertices that touches all edges. We show that it is NP-hard to approximate this proble...
DAM
2006
13 years 8 months ago
2006
Subtree filament graphs are the intersection graphs of subtree filaments in a tree. This class of graphs contains subtree overlap graphs, interval filament graphs, chordal graphs,...
COCOON
2007
Springer
14 years 2 months ago
2007
Springer
It is shown that the traveling salesman problem for graphs