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Total Chromatic Number of Graphs of Order 2n + l having Maximum Degree 2n 1
Authors:Yap, H. P.   Chen, B. L.   Fu, H. L.
Affiliation:Department of Mathematics, National University of Singapore 10 Kent Ridge Crescent, Singapore 0511
Institute of Mathematics, Academia Sinica Nankang, Taipei 11529, Taiwan, Republic of China
Department of Applied Mathematics, National Chiao Tung University 1001 Ta Hsueh Road, Hsinchu, Taiwan, Republic of China
Abstract:Let G be a graph of order 2n + l having maximum degree 2n –1. We prove that the total chromatic number of G is 2n if andonly if eFormula + {alpha}'Formula ≥ n, where w is a vertex of minimum degree in G,Formula is the complement of Gw, eFormula is the size of Formula, and {alpha}'Formula is the edge independence number of Formula.
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