On acyclic edge coloring of toroidal graphs

  • Authors:
  • Yian Xu

  • Affiliations:
  • School of Mathematical Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210046, China

  • Venue:
  • Information Processing Letters
  • Year:
  • 2011

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Abstract

Let c be a proper edge coloring of a graph G. If there exists no bicolored cycle in G with respect to c, then c is called an acyclic edge coloring of G. Let G be a planar graph with maximum degree @D and girth g. In Dong and Xu (2010) [8], Dong and Xu proved that G admits an acyclic edge coloring with @D(G) colors if @D=8 and g=7, or @D=6 and g=8, or @D=5 and g=9, or @D=4 and g=10, or @D=3 and g=14. In this note, we fix a small gap in the proof of Dong and Xu (2010) [8], and generalize the above results to toroidal graphs.