48 search results - page 8 / 10 » Contraction and Treewidth Lower Bounds |
ICALP
2009
Springer
14 years 8 months ago
2009
Springer
We develop new structural results for apex-minor-free graphs and show their power by developing two new approximation algorithms. The first is an additive approximation for colorin...
RSA
1998
13 years 7 months ago
1998
It is well known that after placing n balls independently and uniformly at random into n bins, the fullest bin holds (logn=log logn) balls with high probability. Recently, Azar et...
WG
2005
Springer
14 years 1 months ago
2005
Springer
In this paper, we present a new algorithm for computing the chromatic polynomial of a general graph G. Our method is based on the addition of edges and contraction of non-edges of ...
COMPGEOM
2003
ACM
14 years 29 days ago
2003
ACM
Given a Morse function over a 2-manifold with or without boundary, the Reeb graph is obtained by contracting the connected components of the level sets to points. We prove tight u...
PODC
2004
ACM
14 years 1 months ago
2004
ACM
We introduce the distributed gradient clock synchronization problem. As in traditional distributed clock synchronization, we consider a network of nodes equipped with hardware clo...