77 search results - page 9 / 16 » Contractions of Planar Graphs in Polynomial Time |
GD
2005
Springer
15 years 5 months ago
2005
Springer
A clustered graph has its vertices grouped into clusters in a hierarchical way via subset inclusion, thereby imposing a tree structure on the clustering relationship. The c-planari...
112
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SODA
2012
ACM
13 years 2 months ago
2012
ACM
The Odd Cycle Transversal problem (OCT) asks whether a given graph can be made bipartite by deleting at most k of its vertices. In a breakthrough result Reed, Smith, and Vetta (Op...
APPROX
2009
Springer
15 years 6 months ago
2009
Springer
We obtain a polynomial time approximation scheme for the terrain guarding problem improving upon several recent constant factor approximations. Our algorithm is a local search algo...
TAMC
2009
Springer
15 years 6 months ago
2009
Springer
In this paper we define the notion of an f(k)-uniform parameterized exponential time scheme. We show that a problem can be solved in parameterized O(2o(f(k)) p(n)) time if and on...
102
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STOC
1990
ACM
15 years 3 months ago
1990
ACM
ions (Extended Abstract) Noga Alon Paul Seymour Robin Thomas Let G be an n-vertex graph with nonnegative weights whose sum is 1 assigned to its vertices, and with no minor isomorp...