Non-geometric distance-regular graphs of diameter at least $3$ with smallest eigenvalue at least $-3$

Fuente: arXiv
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Hauptverfasser: Koolen, Jack, Yu, Kefan, Liang, Xiaoye, Choi, Harrison, Markowsky, Greg
Format: Preprint
Veröffentlicht: 2023
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author Koolen, Jack
Yu, Kefan
Liang, Xiaoye
Choi, Harrison
Markowsky, Greg
author_facet Koolen, Jack
Yu, Kefan
Liang, Xiaoye
Choi, Harrison
Markowsky, Greg
contents In this paper, we classify non-geometric distance-regular graphs of diameter at least $3$ with smallest eigenvalue at least $-3$. This is progress towards what is hoped to be an eventual complete classification of distance-regular graphs with smallest eigenvalue at least $-3$, analogous to existing classification results available in the case that the smallest eigenvalue is at least $-2$.
format Preprint
id arxiv_https___arxiv_org_abs_2311_09001
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Non-geometric distance-regular graphs of diameter at least $3$ with smallest eigenvalue at least $-3$
Koolen, Jack
Yu, Kefan
Liang, Xiaoye
Choi, Harrison
Markowsky, Greg
Combinatorics
05C50
In this paper, we classify non-geometric distance-regular graphs of diameter at least $3$ with smallest eigenvalue at least $-3$. This is progress towards what is hoped to be an eventual complete classification of distance-regular graphs with smallest eigenvalue at least $-3$, analogous to existing classification results available in the case that the smallest eigenvalue is at least $-2$.
title Non-geometric distance-regular graphs of diameter at least $3$ with smallest eigenvalue at least $-3$
topic Combinatorics
05C50
url https://arxiv.org/abs/2311.09001