On intriguing sets of the Penttila-Williford association scheme
Combinatorics
2019-02-12 v1
Abstract
We investigate intriguing sets of an association scheme introduced by Penttila and Williford (2011) that was the basis for their construction of primitive cometric association schemes that are not -polynomial nor the dual of a -polynomial scheme. In particular, we give examples and characterisation results for the four types of intriguing sets that arise in this scheme.
Keywords
Cite
@article{arxiv.1902.03695,
title = {On intriguing sets of the Penttila-Williford association scheme},
author = {John Bamberg and Klaus Metsch},
journal= {arXiv preprint arXiv:1902.03695},
year = {2019}
}