Upper Bounds for $s$-Distance Subspaces

Fuente: arXiv
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Autori principali: Wang, LiXia, Ye, Ke
Natura: Preprint
Pubblicazione: 2025
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author Wang, LiXia
Ye, Ke
author_facet Wang, LiXia
Ye, Ke
contents As a generalization of equiangular lines, equiangular subspaces were first systematically studied by Balla, Dräxler, Keevash and Sudakov in 2017. In this paper, we extend their work to $s$-distance subspaces, i.e., to sets of $k$-dimensional subspaces in $\mathbb{R}^n$ whose pairwise distances take $s$ distinct values. We establish upper bounds on the maximum cardinality of such sets. In particular, our bounds generalize and improve results of Balla and Sudakov.
format Preprint
id arxiv_https___arxiv_org_abs_2511_09076
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Upper Bounds for $s$-Distance Subspaces
Wang, LiXia
Ye, Ke
Metric Geometry
Combinatorics
As a generalization of equiangular lines, equiangular subspaces were first systematically studied by Balla, Dräxler, Keevash and Sudakov in 2017. In this paper, we extend their work to $s$-distance subspaces, i.e., to sets of $k$-dimensional subspaces in $\mathbb{R}^n$ whose pairwise distances take $s$ distinct values. We establish upper bounds on the maximum cardinality of such sets. In particular, our bounds generalize and improve results of Balla and Sudakov.
title Upper Bounds for $s$-Distance Subspaces
topic Metric Geometry
Combinatorics
url https://arxiv.org/abs/2511.09076