Abstract
Vizing has shown that if G is a simple graph with maximum vertex-degree ϱ, then the chromatic index of G is either ϱ or ϱ + 1. In this note we prove that almost all graphs have a unique vertex of maximum degree, and we deduce that almost all graphs have chromatic index equal to their maximum degree. This settles a conjecture of the second author (in “Proceedings of the Fifth British Combinatorial Conference 1975”).
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