Published in
Taylor and Francis Group, Linear and Multilinear Algebra, 5(58), p. 545-554
DOI: 10.1080/03081080802648814
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On regular graphs and coronas whose second largest eigenvalue does not exceed 1
Journal article published in 2010 by
Zoran Stanić 
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Abstract
We characterize all regular graphs whose second largest eigenvalue does not exceed 1. In the sequel, we determine all coronas, different from cones, with the same property. Some results and examples regarding unsolved cases are also given.