English

Isodiametric inequality for vector spaces

Combinatorics 2025-03-26 v1

Abstract

A theorem of Kleitman states that a collection of binary vectors with diameter d has cardinality at most that of a Hamming ball of radius d/2. In this paper, we give a q-analog of it.

Cite

@article{arxiv.2503.19239,
  title  = {Isodiametric inequality for vector spaces},
  author = {Jiaqi Liao and Hong Liu and Guiying Yan},
  journal= {arXiv preprint arXiv:2503.19239},
  year   = {2025}
}
R2 v1 2026-06-28T22:33:12.229Z