78 search results - page 2 / 16 » A near-linear time algorithm for computing replacement paths... |
SODA
2010
ACM
14 years 2 months ago
2010
ACM
We observe that the classical maximum flow problem in any directed planar graph G can be reformulated as a parametric shortest path problem in the oriented dual graph G . This ref...
CORR
2008
Springer
13 years 4 months ago
2008
Springer
Abstract. Let G be a directed planar graph of complexity n, each arc having a nonnegative length. Let s and t be two distinct faces of G; let s1, . . . , sk be vertices incident wi...
FOCS
2010
IEEE
13 years 2 months ago
2010
IEEE
Let G be a directed edge-weighted graph and let P be a shortest path from s to t in G. The replacement paths problem asks to compute, for every edge e on P, the shortest s-to-t pat...
FCT
2009
Springer
13 years 8 months ago
2009
Springer
We show that the reachability problem for directed graphs that are either K3,3-free or K5-free is in unambiguous log-space, UL coUL. This significantly extends the result of Bour...
STACS
2010
Springer
13 years 11 months ago
2010
Springer
In 2000 Alber et al. [SWAT 2000 ] obtained the first parameterized subexponential algorithm on undirected planar graphs by showing that k-DOMINATING SET is solvable in time 2O( ...