Back to Search Start Over

Enumeration of Seidel matrices.

Authors :
Szöllősi, Ferenc
Östergård, Patric R.J.
Source :
European Journal of Combinatorics. Mar2018, Vol. 69, p169-184. 16p.
Publication Year :
2018

Abstract

In this paper Seidel matrices are studied, and their spectrum and several related algebraic properties are determined for order n ≤ 13 . Based on this Seidel matrices with exactly three distinct eigenvalues of order n ≤ 23 are classified. One consequence of the computational results is that the maximum number of equiangular lines in R 12 with common angle 1 ∕ 5 is exactly 20 . [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01956698
Volume :
69
Database :
Academic Search Index
Journal :
European Journal of Combinatorics
Publication Type :
Academic Journal
Accession number :
126870925
Full Text :
https://doi.org/10.1016/j.ejc.2017.10.009