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The signed graphs with all but at most three eigenvalues equal to −1.

Authors :
Wang, Yongang
Li, Dan
Lin, Huiqiu
Source :
Linear Algebra & its Applications. May2023, Vol. 664, p314-323. 10p.
Publication Year :
2023

Abstract

The eigenvalues of a signed graph are the eigenvalues of its adjacency matrix. In this paper, we completely characterize the signed graphs for which the adjacency matrices have at most three eigenvalues unequal to −1. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00243795
Volume :
664
Database :
Academic Search Index
Journal :
Linear Algebra & its Applications
Publication Type :
Academic Journal
Accession number :
162026941
Full Text :
https://doi.org/10.1016/j.laa.2023.01.021