English

Optimal codes in the Stiefel manifold

Metric Geometry 2024-07-03 v1 Information Theory Combinatorics math.IT

Abstract

We consider the coding problem in the Stiefel manifold with chordal distance. After considering various low-dimensional instances of this problem, we use Rankin's bounds on spherical codes to prove upper bounds on the minimum distance of a Stiefel code, and then we construct several examples of codes that achieve equality in these bounds.

Keywords

Cite

@article{arxiv.2407.01813,
  title  = {Optimal codes in the Stiefel manifold},
  author = {John Jasper and Nathan Mankovich and Dustin G. Mixon},
  journal= {arXiv preprint arXiv:2407.01813},
  year   = {2024}
}
R2 v1 2026-06-28T17:25:47.321Z