English

Hypercube drawings with no long plane paths

Computational Geometry 2026-03-06 v1 Combinatorics

Abstract

We study the existence of plane substructures in drawings of the dd-dimensional hypercube graph QdQ_d. We construct drawings of QdQ_d which contain no plane subgraph with more than 2d22d-2 edges, no plane path with more than 2d32d-3 edges, and no plane matching of size more than 2d42d-4. On the other hand, we prove that every rectilinear drawing of QdQ_d with vertices in convex position contains a plane path of length dd (if dd is odd) or d1d-1 (if dd is even). We also prove that if a graph GG is a plane subgraph of every drawing of QdQ_d for a sufficiently large dd, then GG is necessarily a forest of caterpillars. Lastly, we give a short proof of a generalization of a result by Alpert et al. [Cong. Numerantium, 2009] on the maximum rectilinear crossing number of QdQ_d.

Keywords

Cite

@article{arxiv.2603.04665,
  title  = {Hypercube drawings with no long plane paths},
  author = {Todor Antić and Niloufar Fuladi and Anna Margarethe Limbach and Pavel Valtr},
  journal= {arXiv preprint arXiv:2603.04665},
  year   = {2026}
}

Comments

19 pages, 11 figures, preliminary version to appear in proceedings of EuroCG 2026

R2 v1 2026-07-01T11:04:04.187Z