Rosenfeld (1971) proved that the Total Colouring Conjecture holds for balanced complete r-partite graphs. Bermond (1974) determined the exact total chromatic number of every balanced complete r-partite graph. Rosenfeld's result had been generalized recently to complete r-partite graphs by Yap (1 989). The main result of this paper is to prove that the total chromatic number of every complete r-partite graph G of odd order is DELTA(G) + 1. This result gives a partial generalization of Bermond's theorem.
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TEL AVIV UNIV,DEPT MATH,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,IL-69978 TEL AVIV,ISRAELTEL AVIV UNIV,DEPT MATH,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,IL-69978 TEL AVIV,ISRAEL