18 search results - page 1 / 4 » Approximating Minimum Power Covers of Intersecting Families ... |
APPROX
2006
Springer
13 years 8 months ago
2006
Springer
ESA
2010
Springer
13 years 5 months ago
2010
Springer
We consider the Minimum Vertex Cover problem in intersection graphs of axis-parallel rectangles on the plane. We present two algorithms: The first is an EPTAS for non-crossing rect...
ESA
2007
Springer
13 years 10 months ago
2007
Springer
Given a (directed or undirected) graph with edge costs, the power of a node is the maximum cost of an edge leaving it, and the power of the graph is the sum of the powers of its n...
APPROX
2008
Springer
13 years 6 months ago
2008
Springer
We consider the variant of the minimum vertex cover problem in which we require that the cover induces a connected subgraph. We give new approximation results for this problem in d...
APPROX
2000
Springer
13 years 9 months ago
2000
Springer
Given a graph (directed or undirected) with costs on the edges, and an integer k, we consider the problem of nding a k-node connected spanning subgraph of minimum cost. For the ge...