论文标题

稀疏简单图的DP色彩有缺陷

Defective DP-colorings of sparse simple graphs

论文作者

Jing, Yifan, Kostochka, Alexandr, Ma, Fuhong, Xu, Jingwei

论文摘要

DP颜色(也称为对应着色)是Dvočhkand Postle最近开发的列表着色的概括。我们介绍和研究$(i,j)$ - 简单图形的DP颜色有缺陷。令$ g_ {dp}(i,j,n)$为$ n $ -vertex dp-$(i,j)$ - 关键图中的最小边数。在本文中,我们确定每个$ i \ geq3 $和$ j \ j \ geq 2i+1 $ in $ g_ {dp}(i,j,n)$的尖锐绑定。

DP-coloring (also known as correspondence coloring) is a generalization of list coloring developed recently by Dvořák and Postle. We introduce and study $(i,j)$-defective DP-colorings of simple graphs. Let $g_{DP}(i,j,n)$ be the minimum number of edges in an $n$-vertex DP-$(i,j)$-critical graph. In this paper we determine sharp bound on $g_{DP}(i,j,n)$ for each $i\geq3$ and $j\geq 2i+1$ for infinitely many $n$.

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