S Ndreca, A Procacci, B Scoppola - arXiv preprint arXiv …, 2010 - researchgate.net
Given a graph G with maximum degree∆, we prove that the acyclic edge chromatic number
a′(G) of G is such that a′(G)≤ 9.62∆. Moreover we prove that a′(G)≤ 6.3∆ if G has girth …