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Acyclic Edge Coloring of 4-Regular Graphs (II)

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Abstract

A proper edge coloring is called acyclic if no bichromatic cycles are produced. It was conjectured that every simple graph G with maximum degree \(\Delta \) is acyclically edge-\((\Delta + 2)\)-colorable. In this paper, combining some known results, we confirm the conjecture for graphs with \(\Delta =4\).

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Correspondence to Yiqiao Wang.

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Communicated by Sanming Zhou.

Weifan Wang: Research supported partially by NSFC (Nos.11771402 and 11371328). Qiaojun Shu: Research supported partially by NSFC (No. 11601111) and ZJNSF (No. LQ15A010010). Yiqiao Wang: Research supported partially by NSFC (Nos. 11301035 and 11671053).

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Wang, W., Ma, Y., Shu, Q. et al. Acyclic Edge Coloring of 4-Regular Graphs (II). Bull. Malays. Math. Sci. Soc. 42, 2047–2054 (2019). https://doi.org/10.1007/s40840-017-0592-7

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  • DOI: https://doi.org/10.1007/s40840-017-0592-7

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