553 search results - page 4 / 111 » On Planar Path Transformation |
IWOCA
2010
Springer
13 years 2 months ago
2010
Springer
A path-based support of a hypergraph H is a graph with the same vertex set as H in which each hyperedge induces a Hamiltonian subgraph. While it is NP-complete to compute a path-ba...
ALGORITHMICA
1998
13 years 7 months ago
1998
In this paper we give a fully dynamic approximation scheme for maintaining all-pairs shortest paths in planar networks. Given an error parameter ε such that 0 < ε, our algorit...
SODA
2010
ACM
14 years 4 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...
ISAAC
2009
Springer
13 years 12 months ago
2009
Springer
For a graph G and a collection of vertex pairs {(s1, t1), . . . , (sk, tk)}, the k disjoint paths problem is to find k vertex-disjoint paths P1, . . . , Pk, where Pi is a path fr...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
We provide the first linear-space data structure with provable sublinear query time for exact point-topoint shortest path queries in planar graphs. We prove that for any planar gr...