Title
Vertex arboricity and maximum degree
Abstract
The vertex arboricity of graph G is the minimum number of colors that can be used to color the vertices of G so that each color class induces an acylic subraph of cyclic subgraph of G . We prove results such as this: if a connected graph G is neither a cycle nor a clique, then there is a coloring of V ( G ) with at most ⌈ Δ ( G )/2 ⌉ colors, such that each color class induces a forest and one of those induced forests is a maximum induced forest in G . This improves prior results of Brooks (1941). Kronk and Mitchem (1974/75), and Lovász (1966), and it is analogus to a result of Catlin (1976, 1979) on the chromatic number that improves Brooks' theorem.
Year
DOI
Venue
1995
10.1016/0012-365X(93)E0205-I
Discrete Mathematics
Keywords
Field
DocType
vertex arboricity,maximum degree,arboricity,chromatic number,connected graph
Edge coloring,Discrete mathematics,Combinatorics,Fractional coloring,Vertex (graph theory),Neighbourhood (graph theory),Degree (graph theory),Brooks' theorem,Arboricity,Degeneracy (graph theory),Mathematics
Journal
Volume
Issue
ISSN
141
1-3
Discrete Mathematics
Citations 
PageRank 
References 
12
1.11
3
Authors
2
Name
Order
Citations
PageRank
Paul A. Catlin151466.29
Hong-Jian Lai263197.39