English

$Q$-polynomial coherent configurations

Combinatorics 2021-04-12 v1

Abstract

Coherent configurations are a generalization of association schemes. In this paper, we introduce the concept of QQ-polynomial coherent configurations and study the relationship among intersection numbers, Krein numbers, and eigenmatrices. The examples of QQ-polynomial coherent configurations are provided from Delsarte designs in QQ-polynomial schemes and spherical designs.

Keywords

Cite

@article{arxiv.2104.04225,
  title  = {$Q$-polynomial coherent configurations},
  author = {Sho Suda},
  journal= {arXiv preprint arXiv:2104.04225},
  year   = {2021}
}

Comments

25 pages

R2 v1 2026-06-24T00:59:35.517Z