English

Every triangle-free induced subgraph of the triangular lattice is $(5m,2m)$-choosable

Combinatorics 2011-10-13 v1

Abstract

A graph GG is (a,b)(a,b)-choosable if for any color list of size aa associated with each vertex, one can choose a subset of bb colors such that adjacent vertices are colored with disjoint color sets. This paper proves that for any integer m1m\ge 1, every finite triangle-free induced subgraph of the triangular lattice is (5m,2m)(5m,2m)-choosable.

Keywords

Cite

@article{arxiv.1110.2650,
  title  = {Every triangle-free induced subgraph of the triangular lattice is $(5m,2m)$-choosable},
  author = {Yves Aubry and Jean-Christophe Godin and Olivier Togni},
  journal= {arXiv preprint arXiv:1110.2650},
  year   = {2011}
}