112 search results - page 8 / 23 » Constant factor approximation of vertex-cuts in planar graph... |
CCCG
2010
13 years 8 months ago
2010
A dominating set of a graph G = (V, E) is a subset V V of the nodes such that for all nodes v V , either v V or a neighbor u of v is in V . Several routing protocols in ad hoc ...
COCOA
2008
Springer
13 years 9 months ago
2008
Springer
Abstract: Recently, there have been significant theoretical progresses towards fixed-parameter algorithms for the DOMINATING SET problem of planar graphs. It is known that the prob...
CORR
2011
Springer
12 years 11 months ago
2011
Springer
We present an approximation scheme for optimizing certain Quadratic Integer Programming problems with positive semidefinite objective functions and global linear constraints. Thi...
JCO
2010
13 years 5 months ago
2010
The following planar minimum disk cover problem is considered in this paper: given a set D of n disks and a set P of m points in the Euclidean plane, where each disk covers a subse...
FSTTCS
2010
Springer
13 years 5 months ago
2010
Springer
ABSTRACT. The maximum independent set problem (MAXIS) on general graphs is known to be NPhard to approximate within a factor of n1-, for any > 0. However, there are many "...