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Partial DP-coloring of graphs
Discrete Mathematics ( IF 0.8 ) Pub Date : 2021-01-25 , DOI: 10.1016/j.disc.2021.112306
Hemanshu Kaul , Jeffrey A. Mudrock , Michael J. Pelsmajer

In 1980, Albertson and Berman introduced partial coloring. In 2000, Albertson, Grossman, and Haas introduced partial list coloring. Here, we initiate the study of partial coloring for an insightful generalization of list coloring introduced in 2015 by Dvořák and Postle, DP-coloring (or correspondence coloring). We consider the DP-coloring analogue of the Partial List Coloring Conjecture, which generalizes a natural bound for partial coloring. We show that while this partial DP-coloring conjecture does not hold, several results on partial list coloring can be extended to partial DP-coloring. We also study partial DP-coloring of the join of a graph with a complete graph, and we present several interesting open questions.



中文翻译:

图形的局部DP着色

1980年,阿尔伯森(Albertson)和伯曼(Berman)引入了部分着色。2000年,Albertson,Grossman和Haas引入了部分列表着色。在这里,我们开始进行部分着色的研究,以深入了解Dvořák和Postle于2015年提出的列表着色,DP着色(或对应着色)。我们考虑了部分列表着色猜想的DP着色类似物,它概括了部分着色的自然界。我们表明,虽然这种局部DP着色猜想不成立,但是关于局部列表着色的一些结果可以扩展到局部DP着色。我们还研究了图与完整图的连接的部分DP着色,并提出了几个有趣的开放问题。

更新日期:2021-01-25
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