Characterizations of regularity for certain $Q$-polynomial association schemes
Combinatorics
2009-10-27 v1
Abstract
It is shown that linked systems of symmetric designs with and mutually unbiased bases (MUB) are triply regular association schemes. In this paper, we characterize triple regularity of linked systems of symmetric designs by its Krein number. And we prove that maximal MUB carries a quadruply regular association scheme and characterize the quadruple regularity of MUB by its parameter.
Keywords
Cite
@article{arxiv.0910.4629,
title = {Characterizations of regularity for certain $Q$-polynomial association schemes},
author = {Sho Suda},
journal= {arXiv preprint arXiv:0910.4629},
year = {2009}
}