Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4647448 | Discrete Mathematics | 2013 | 5 Pages |
Abstract
A complete colouring of a simple graph GG is a proper vertex colouring such that each pair of colours appears together on at least one edge. The achromatic number ψ(G)ψ(G) is the greatest number of colours in such a colouring.We give simple necessary and sufficient conditions for a graph of maximum degree 2 to have a complete colouring with kk colours, provided the graph is large enough, and use this to give the achromatic number for such a graph.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Keith J. Edwards,