Acyclic total coloring of graphs with large girths

A proper total coloring of a graph \( G \) such that there are at least 4 colors on those vertices and edges incident with a cycle of \( G \), is called an acyclic total coloring. The acyclic total chromatic number of \( G \), denoted by \( \chi^{''}_{a}(G) \), is the smallest number of colors such that \( G \) has an acyclic total coloring. In this article, we prove that for any graph \( G \) with \( \Delta(G)=\Delta \) which satisfies \( \chi^{''}(G)\leq A \) for some constant \( A \), and for any integer \( r \), \( 1\leq r \leq 2\Delta \), there exists a constant \( c>0 \) such that if \( g(G)\geq\frac{c\Delta}{r}\log\frac{\Delta^{2}}{r} \), then \( \chi^{''}_{a}(G)\leq A+r \).

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Publication Details

Journal
Ars Combinatoria
Published
2025-03-22
DOI
https://doi.org/10.61091/ars162-01
Primary Topic
Graph Labeling and Dimension Problems
Type
article
Field-Weighted Citation Impact
0.00

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article

Acyclic total coloring of graphs with large girths

Wenyao Song, Xiaoya Li, Lianying Miao
Ars Combinatoria
Graph Labeling and Dimension Problems
article

Acyclic total coloring of graphs with large girths

Wenyao Song, Xiaoya Li, Lianying Miao
article en

Abstract

A proper total coloring of a graph \( G \) such that there are at least 4 colors on those vertices and edges incident with a cycle of \( G \), is called an acyclic total coloring. The acyclic total chromatic number of \( G \), denoted by \( \chi^{''}_{a}(G) \), is the smallest number of colors such that \( G \) has an acyclic total coloring. In this article, we prove that for any graph \( G \) with \( \Delta(G)=\Delta \) which satisfies \( \chi^{''}(G)\leq A \) for some constant \( A \), and for any integer \( r \), \( 1\leq r \leq 2\Delta \), there exists a constant \( c>0 \) such that if \( g(G)\geq\frac{c\Delta}{r}\log\frac{\Delta^{2}}{r} \), then \( \chi^{''}_{a}(G)\leq A+r \).

Ars CombinatoriaVol. 162
National Natural Science Foundation of China
Openalex Percentile: Top 94%
Graph Labeling and Dimension Problems
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