# Sufficient conditions on planar graphs to have a relaxed   DP-$3$-colorability

**Authors:** Pongpat Sittitrai, Kittikorn Nakprasit

arXiv: 1803.03527 · 2018-03-12

## TL;DR

This paper introduces a relaxed DP-coloring concept for planar graphs and proves that graphs without 4- or 6-cycles are DP-$(k,d)^*$-colorable, extending list coloring results.

## Contribution

It defines a new relaxed DP-coloring framework and establishes colorability results for planar graphs lacking 4- or 6-cycles.

## Key findings

- Planar graphs without 4- or 6-cycles are DP-$(k,d)^*$-colorable
- Introduces a generalized relaxed DP-coloring concept
- Extends list coloring results to DP-coloring context

## Abstract

It is known that DP-coloring is a generalization of a list coloring in simple graphs and many results in list coloring can be generalized in those of DP-coloring. In this work, we introduce a relaxed DP-coloring which is a generalization if a relaxed list coloring. We also shows that every planar graph $G$ without $4$-cycles or $6$-cycles is DP-$(k,d)^*$-colorable. It follows immediately that $G$ is $(k,d)^*$-choosable.

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1803.03527/full.md

## References

17 references — full list in the complete paper: https://tomesphere.com/paper/1803.03527/full.md

---
Source: https://tomesphere.com/paper/1803.03527