The total chromatic number 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 three special graphs are type 1.
谢德政.几个特殊图的全着色[J].重庆工商大学学报(自然科学版),2005,(1): XIE De-zheng. The total chromatic number of three special graphs[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2005,(1):