Laplacian integral signed graphs with few cycles

A connected graph with n vertices and m edges is called k-cyclic graph if k=m−n+1. We call a signed graph is Laplacian integral if all eigenvalues of its Laplacian matrix are integers. In this paper, we will study the Laplacian integral k-cyclic signed graphs with k=0,1,2, 3 and determine all connec...

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Bibliographic Details
Main Authors: Dijian Wang, Dongdong Gao
Format: Article
Language:English
Published: AIMS Press 2023-01-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2023354?viewType=HTML