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Citation

Cvetkovic D, Rowlinson P & Simic S (2015) Graphs with least eigenvalue -2: ten years on. Linear Algebra and Its Applications, 484, pp. 504-539. https://doi.org/10.1016/j.laa.2015.06.012

Abstract
The authors' monographSpectral Generalizations of Line Graphswas published in 2004, following the successful use of star complements to complete the classification of graphs with least eigenvalue −2. Guided by citations of the book, we survey progress in this area over the past decade. Some new observations are included.

Keywords
Graph spectra; Hoffman graph; Signed graph; signless Laplacian; Star complement

Journal
Linear Algebra and Its Applications: Volume 484