49 search results - page 6 / 10 » On Shortest Disjoint Paths in Planar Graphs |
CORR
2008
Springer
13 years 7 months ago
2008
Springer
Reachability and distance computation are known to be NL-complete in general graphs, but within UL co-UL if the graphs are planar. However, finding longest paths is known to be N...
ESA
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. We prove that for every graph H, there exists a polynomial-time algorithm deciding if a planar graph can be contracted to H. We introduce contractions and topological min...
MOBICOM
2003
ACM
14 years 22 days ago
2003
ACM
We develop algorithms for finding minimum energy disjoint paths in an all-wireless network, for both the node and linkdisjoint cases. Our major results include a novel polynomial...
SIAMCOMP
1998
13 years 7 months ago
1998
This paper introduces a near-linear time sequential algorithm for constructing a sparse neighborhood cover. This implies analogous improvements (from quadratic to near-linear time)...
STACS
2010
Springer
14 years 2 months ago
2010
Springer
Reachability and shortest path problems are NL-complete for general graphs. They are known to be in L for graphs of tree-width 2 [14]. However, for graphs of treewidth larger than ...