English

Odd coloring graphs with linear neighborhood complexity

Combinatorics 2026-02-12 v2 Discrete Mathematics

Abstract

We prove that any class of graphs with linear neighborhood complexity has bounded improper odd chromatic number. As a result, if G\mathcal{G} is the class of all circle graphs, or if G\mathcal{G} is any class with bounded twin-width, bounded merge-width, or a forbidden vertex-minor, then G\mathcal{G} is χo\chi_{\mathrm{o}}-bounded.

Keywords

Cite

@article{arxiv.2506.08926,
  title  = {Odd coloring graphs with linear neighborhood complexity},
  author = {James Davies and Meike Hatzel and Kolja Knauer and Rose McCarty and Torsten Ueckerdt},
  journal= {arXiv preprint arXiv:2506.08926},
  year   = {2026}
}

Comments

16 pages, 1 figure

R2 v1 2026-07-01T03:09:22.319Z