# Bounds on equiangular lines and on related spherical codes

Authors
Type
Preprint
Publication Date
Feb 25, 2016
Submission Date
Aug 01, 2015
Identifiers
arXiv ID: 1508.00136
Source
arXiv
An $L$-spherical code is a set of Euclidean unit vectors whose pairwise inner products belong to the set $L$. We show, for a fixed $\alpha,\beta>0$, that the size of any $[-1,-\beta]\cup\{\alpha\}$-spherical code is at most linear in the dimension. In particular, this bound applies to sets of lines such that every two are at a fixed angle to each another.