English

The Norton algebra of a $Q$-polynomial distance-regular graph

Combinatorics 2020-06-11 v1

Abstract

We consider the Norton algebra associated with a QQ-polynomial primitive idempotent of the adjacency matrix for a distance-regular graph. We obtain a formula for the Norton algebra product that we find attractive.

Keywords

Cite

@article{arxiv.2006.04997,
  title  = {The Norton algebra of a $Q$-polynomial distance-regular graph},
  author = {Paul Terwilliger},
  journal= {arXiv preprint arXiv:2006.04997},
  year   = {2020}
}

Comments

11 pages