Distance-regular graphs with a few q-distance eigenvalues
- Authors:Mamoon Abdullah, Brhane Gebremichel, Sakander Hayat, Jack H. Koolen
- Publication Date:January 5, 2024
- Type:Journal Article
- DOI:10.1016/j.disc.2024.113926
- Publication On:Discrete Mathematics
Abstract
In this paper we study when the q-distance matrix of a distance-regular graph has few distinct eigenvalues. We mainly concentrate on diameter 3.