On intriguing sets of the Penttila-Williford association scheme

John Bamberg, Klaus Metsch

Research output: Contribution to journalArticlepeer-review


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 P-polynomial nor the dual of a P-polynomial scheme. In particular, we give examples and characterisation results for the four types of intriguing sets that arise in this scheme.

Original languageEnglish
Pages (from-to)327-345
Number of pages19
JournalLinear Algebra and Its Applications
Publication statusPublished - 1 Dec 2019


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