Asymptotics of the Chromatic Number for Quasi-Line Graphs
β Scribed by Andrew D. King; Bruce Reed
- Book ID
- 112121140
- Publisher
- John Wiley and Sons
- Year
- 2012
- Tongue
- English
- Weight
- 584 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We introduce in this paper the notion of the chromatic number of an oriented graph G (that is of an antisymmetric directed graph) defined as the minimum order of an oriented graph H such that G admits a homomorphism to H. We study the chromatic number of oriented k-trees and of oriented graphs with
## Abstract In this article we first give an upper bound for the chromatic number of a graph in terms of its degrees. This bound generalizes and modifies the bound given in 11. Next, we obtain an upper bound of the order of magnitude ${\cal O}({n}^{{1}-\epsilon})$ for the coloring number of a graph