MAJORIZATION BOUNDS FOR SIGNLESS LAPLACIAN EIGENVALUES
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
INT LINEAR ALGEBRA SOC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
It is known that, for a simple graph G and a real number alpha, the quantity s(alpha)'(G) is defined as the sum of the alpha-th power of non-zero singless Laplacian eigenvalues of G. In this paper, first some majorization bounds over s(alpha)'(G) are presented in terms of the degree sequences, and number of vertices and edges of G. Additionally, a connection between s(alpha)'(G) and the first Zagreb index, in which the Holder's inequality plays a key role, is established. In the last part of the paper, some bounds (included Nordhauss-Gaddum type) for signless Laplacian Estrada index are presented.
Açıklama
Anahtar Kelimeler
Signless Laplacian matrix, Signless Laplacian-Estrada index, (First) Zagreb index, Majorization, Strictly Schur-convex
Kaynak
ELECTRONIC JOURNAL OF LINEAR ALGEBRA
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
26
