Signless Laplacian spectral characterization of some graphs

2019/12/05 by R, Rakshith B.
#Combinatorics (math.CO) #FOS: Mathematics

paper · doi:10.48550/arxiv.1912.02378

Abstract

In this paper, we investigate (signless) Laplacian spectral characterization of graphs with star components. Also, we prove that the join graph \small K_n-α-e\vee αK₁ is DQS for n-α>3 and α≠3, and for α=3, we show that its only Q-cospectral mate is K_1,3∪ K₂∪ (n-6)K₁.

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