Title
On the eccentricity spectra of complete multipartite graphs
Abstract
The eccentricity matrix epsilon(G) of a graph G is derived from the corresponding distance matrix by keeping only the largest non-zero elements for each row and each column and leaving zeros for the remaining ones. The epsilon-eigenvalues of a graph G are those of its eccentricity matrix, in which the maximum modulus is called the epsilon-spectral radius. In this paper, we first establish the relationship between the majorization and epsilon-spectral radii of complete multipartite graphs. As applications, the extremal complete multipartite graphs having the minimum and maximum epsilon-spectral radii are determined. Furthermore, we study the multiplicities of epsilon-eigenvalues among complete multipartite graphs and identify all complete multipartite graphs with distinct epsilon-eigenvalues. (C) 2022 Elsevier Inc. All rights reserved.
Year
DOI
Venue
2022
10.1016/j.amc.2022.127036
APPLIED MATHEMATICS AND COMPUTATION
Keywords
DocType
Volume
Eccentricity matrix, epsilon-spectrum, Majorization, Multiplicity
Journal
424
ISSN
Citations 
PageRank 
0096-3003
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Wei Wei12220.02
Shuchao Li218335.15