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Bibliographic Details
Main Author: Ebrahimi, Mahdi
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2409.13784
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author Ebrahimi, Mahdi
author_facet Ebrahimi, Mahdi
contents For a simple graph $G$, the complement and the line graph of $G$ are denoted by $G^c$ and $L(G)$, respectively. In this paper, we show that for every simple connected regular graph $G$ with at least $5$ vertices, the graph $\mathcal{R}(G):=L(L(G)^c)^c$ is a Ramanujan graph with diameter at most three.
format Preprint
id arxiv_https___arxiv_org_abs_2409_13784
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Ramanujan graphs with diameter at most three
Ebrahimi, Mahdi
Combinatorics
05C50
For a simple graph $G$, the complement and the line graph of $G$ are denoted by $G^c$ and $L(G)$, respectively. In this paper, we show that for every simple connected regular graph $G$ with at least $5$ vertices, the graph $\mathcal{R}(G):=L(L(G)^c)^c$ is a Ramanujan graph with diameter at most three.
title Ramanujan graphs with diameter at most three
topic Combinatorics
05C50
url https://arxiv.org/abs/2409.13784