20 search results - page 1 / 4 » Improvement on vertex cover for low-degree graphs |
ACID
2006
13 years 8 months ago
2006
We consider the concepts of a t-total vertex cover and a t-total edge cover (t 1), which generalize the notions of a vertex cover and an edge cover, respectively. A t-total verte...
NETWORKS
2000
13 years 7 months ago
2000
COCOON
2004
Springer
14 years 26 days ago
2004
Springer
The problem of efficiently monitoring the network flow is regarded as the one to find out the minimum weighted weak vertex cover set for a given graph G = (V, E) with weight func...
ISAAC
2000
Springer
13 years 11 months ago
2000
Springer
It has been a challenging open problem whether there is a polynomial time approximation algorithm for the Vertex Cover problem whose approximation ratio is bounded by a constant l...
ICALP
2011
Springer
12 years 11 months ago
2011
Springer
In [13], Erd˝os et al. defined the local chromatic number of a graph as the minimum number of colors that must appear within distance 1 of a vertex. For any ∆ ≥ 2, there are ...