29 search results - page 1 / 6 » Connected Vertex Covers in Dense Graphs |
APPROX
2008
Springer
13 years 7 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...
WG
2007
Springer
13 years 11 months ago
2007
Springer
We study a variation of the vertex cover problem where it is required that the graph induced by the vertex cover is connected. We prove that this problem is polynomial in chordal g...
ACID
2006
13 years 6 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...
COCOA
2008
Springer
13 years 6 months ago
2008
Springer
Connected Vertex Cover Problem (CVC) is an NP-hard problem. The currently best known approximation algorithm for CVC has performance ration 2. This paper gives the first Polynomial...
DM
2007
13 years 4 months ago
2007
We study properties of the sets of minimal forbidden minors for the families of graphs having a vertex cover of size at most k. We denote this set by O(k-VERTEX COVER) and call it...