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author:

Lin, Q.Z. (Lin, Q.Z..) [1] | Hou, J.F. (Hou, J.F..) [2] | Liu, Y. (Liu, Y..) [3]

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Scopus

Abstract:

A proper edge coloring of a graph G is called acyclic if there is no 2-colored cycle in G. The acyclic chromatic index of G, denoted by x′a(G), is the least number of colors such that G has an acyclic edge k-coloring. Let G be a graph with maximum degree Δ and girth g(G), and let 1 ≤ r ≤ 2Δ be an integer. In this paper, it is shown that there exists a constant c > 0 such that if g(G), then x′a(G) ≤ Δ+r + 1, which generalizes the result of Alon et al. in 2001. When G is restricted to series-parallel graphs, it is proved that x′a(G) = Δ if Δ ≥ 4 and g(G) ≥ 4; or Δ ≥ 3 and g(G) ≥ 5. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.

Keyword:

acyclic edge coloring; girth; probability method; series-parallel graphs

Community:

  • [ 1 ] [Lin, Q.Z.]College of Mathematics and Computer Science, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Hou, J.F.]Center for Discrete Mathematics, Fuzhou University, Fuzhou, 350003, China
  • [ 3 ] [Liu, Y.]College of Mathematics and Computer Science, Fuzhou University, Fuzhou, 350108, China

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Source :

Science China Mathematics

ISSN: 1674-7283

Year: 2012

Issue: 12

Volume: 55

Page: 2593-2600

0 . 4 9 7

JCR@2012

1 . 4 0 0

JCR@2023

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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