In this article, we use a unified approach to prove several classes of planar graphs are DP-3-colorable, which extend the corresponding results on 3-choosability.
@article{arxiv.1802.09312,
title = {DP-3-coloring of some planar graphs},
author = {Runrun Liu and Sarah Loeb and Yuxue Yin and Gexin Yu},
journal= {arXiv preprint arXiv:1802.09312},
year = {2018}
}
Comments
15 pages, five figures. We revised the previous version based on referees' report