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The total chromatic number of regular graphs of even order and high degree
Authors:Dezheng Xie  Zhongshi He
Institution:

Department of Mathematics, Chongqing Technology and Business University, Chongqing 400067, China

Department of Mathematics, Chongqing University, Chongqing 400041, China

Abstract:The total chromatic number χT(G) of a graph G is the minimum number of colours needed to colour the edges and the vertices of G so that incident or adjacent elements have distinct colours. We show that if G is a regular graph of even order and View the MathML source, thenχT(G)less-than-or-equals, slantΔ(G)+2.
Keywords:Total chromatic number  Total colouring  Total colouring conjecture
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