3 search results - page 1 / 1 » Approximation schemes for minimum 2-edge-connected and bicon... |
SODA
2004
ACM
13 years 5 months ago
2004
ACM
Given an undirected graph, finding either a minimum 2-edge-connected spanning subgraph or a minimum 2vertex-connected (biconnected) spanning subgraph is MaxSNP-hard. We show that ...
ESA
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. We present new approximation schemes for various classical problems of finding the minimum-weight spanning subgraph in edge-weighted undirected planar graphs that are re...
STOC
2006
ACM
14 years 4 months ago
2006
ACM
Let > 0 be a constant. For any edge-weighted planar graph G and a subset S of nodes of G, there is a subgraph H of G of weight a constant times that of the minimum Steiner tree...