Article ID Journal Published Year Pages File Type
4647448 Discrete Mathematics 2013 5 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
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