Improvement of generalization of Larman-Rogers-Seidel's theorem
Combinatorics
2021-06-18 v1 Metric Geometry
Abstract
A finite set in the -dimensional Euclidean space is called an -distance set if the set of distances between any two distinct points of has size . In 1977, Larman-Rogers-Seidel proved that if the cardinality of an two-distance set is large enough, then there exists an integer such that the two distances , having the integer condition, namely, . In 2011, Nozaki generalized Larman-Rogers-Seidel's theorem to the case of -distance sets, i.e. if the cardinality of an -distance set with distances , where , then the numbers are integers. In this note, we reduce the lower bound of the requirement of integer condition of -distance sets in . Furthermore, we can show that there are only finitely many -distance sets in with
Cite
@article{arxiv.2106.09582,
title = {Improvement of generalization of Larman-Rogers-Seidel's theorem},
author = {Cheng-Jui Yeh and Wei-Hsuan Yu},
journal= {arXiv preprint arXiv:2106.09582},
year = {2021}
}
Comments
6 pages, no figure