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List r-dynamic coloring of sparse graphs
Theoretical Computer Science ( IF 1.1 ) Pub Date : 2019-07-02 , DOI: 10.1016/j.tcs.2019.05.032
Junlei Zhu , Yuehua Bu

The r-dynamic coloring is a generalization of the L(1,1)-labeling. An r-dynamic k-coloring of a graph G is a proper k-coloring such that every vertex v in V(G) has neighbors in at least min{d(v),r} different classes. The r-dynamic chromatic number of G, written χr(G), is the minimum k such that G has such a coloring. The list r-dynamic chromatic number of G is denoted chr(G). In this paper, we show that chr(G)r+5 for planar graphs G with g(G)5 and r15, chr(G)r+10 for graphs G with mad(G)<103 and chr(G)r+1 for graphs G with mad(G)<83 and r14.



中文翻译:

稀疏图的列表r动态着色

所述ř -dynamic着色的一般化大号1个1个-标签。图Gr动态k着色是适当的k着色,使得每个顶点v inVG 至少有邻居 {dv[R}不同的类别。所述ř的-dynamic色数ģ,写入χ[RG是使G具有这种颜色的最小值kG的列表r-动态色数表示CH[RG。在本文中,我们表明CH[RG[R+5为平面图ģGG5[R15CH[RG[R+10对于图G一种dG<103CH[RG[R+1个对于图G一种dG<83[R14

更新日期:2019-07-02
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