This paper discusses a variation of the game chromatic number of a graph: the game coloring number. This parameter provides an upper bound for the game chromatic number of a graph. We show that the game coloring number of a planar graph is at most 19. This implies that the game chromatic number of a
Edge-partitions of planar graphs and their game coloring numbers
β Scribed by Wenjie He; Xiaoling Hou; Ko-Wei Lih; Jiating Shao; Weifan Wang; Xuding Zhu
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 98 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
Let G be a planar graph and let g(G) and Γ(G) be its girth and maximum degree, respectively. We show that G has an edge-partition into a forest and a subgraph H so that (i)
-cycles (though it may contain 3-cycles). These results are applied to find the following upper bounds for the game coloring number col g (G) of a planar graph G:
11 if G does not contain 4-cycles (though it may contain 3-cycles).
π SIMILAR VOLUMES
An __acyclic__ edge coloring of a graph is a proper edge coloring such that there are no bichromatic cycles. The __acyclic chromatic index__ of a graph is the minimum number __k__ such that there is an acyclic edge coloring using __k__ colors and is denoted by __a__β²(__G__). It was conjectured by Al
## Abstract In the edge precoloring extension problem, we are given a graph with some of the edges having preassigned colors and it has to be decided whether this coloring can be extended to a proper __k__βedgeβcoloring of the graph. In list edge coloring every edge has a list of admissible colors,