Title
On the eigenvalues of Aα-matrix of graphs.
Abstract
Let G be a graph with adjacency matrix A(G) and let D(G) be the diagonal matrix of the degrees of G. For every real α∈[0,1], Nikiforov defined the matrix Aα(G) as Aα(G)=αD(G)+(1−α)A(G). In this paper, we study the kth largest eigenvalue of Aα-matrix of graphs, where 1≤k≤n. We present several upper and lower bounds on the kth largest eigenvalue of Aα-matrix and characterize the extremal graphs corresponding to some of these obtained bounds. As applications, some bounds we obtained can generalize some known results on adjacency matrix and signless Laplacian matrix of graphs. Finally, we solve a problem proposed by Nikiforov (2017).
Year
DOI
Venue
2020
10.1016/j.disc.2020.111917
Discrete Mathematics
Keywords
DocType
Volume
Graph,The kth largest eigenvalue of Aα(G),Aα-spectral radius,Degree
Journal
343
Issue
ISSN
Citations 
8
0012-365X
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Shuting Liu100.34
Kinkar Chandra Das200.34
Jinlong Shu39924.28