English

3-Coloring in Time O(1.3217^n)

Data Structures and Algorithms 2023-02-28 v1 Computational Complexity

Abstract

We propose a new algorithm for 3-coloring that runs in time O(1.3217^n). For this algorithm, we make use of the time O(1.3289^n) algorithm for 3-coloring by Beigel and Eppstein. They described a structure in all graphs, whose vertices could be colored relatively easily. In this paper, we improve upon this structure and present new ways to determine how the involved vertices reduce the runtime of the algorithm.

Keywords

Cite

@article{arxiv.2302.13644,
  title  = {3-Coloring in Time O(1.3217^n)},
  author = {Lucas Meijer},
  journal= {arXiv preprint arXiv:2302.13644},
  year   = {2023}
}

Comments

17 pages, 10 figures, 2 tables

R2 v1 2026-06-28T08:50:20.585Z