50 search results - page 5 / 10 » Colorful subgraphs in Kneser-like graphs |
WG
2004
Springer
14 years 1 months ago
2004
Springer
We show how to use split decomposition to compute the weighted clique number and the chromatic number of a graph and we apply these results to some classes of graphs. In particular...
ALGORITHMICA
2010
13 years 6 months ago
2010
The problem of computing the chromatic number of a P5-free graph (a graph which contains no path on 5 vertices as an induced subgraph) is known to be NP-hard. However, we show tha...
DM
2008
13 years 7 months ago
2008
For two graphs G and H, let the mixed anti-Ramsey numbers, maxR(n; G, H), (minR(n; G, H)) be the maximum (minimum) number of colors used in an edge-coloring of a complete graph wi...
CJCDGCGT
2005
Springer
13 years 9 months ago
2005
Springer
The vertex arboricity va(G) of a graph G is the minimum number of subsets into which the vertex set V (G) can be partitioned so that each subset induces an acyclic subgraph. The f...
DAM
2010
13 years 7 months ago
2010
We study P6-free graphs, i.e., graphs that do not contain an induced path on six vertices. Our main result is a new characterization of this graph class: a graph G is P6-free if an...