Article
MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY  (2015)

An Improved Upper Bound of the Energy of Some Graphs and Matrices

de Freitas, Maria Aguieiras A; Robbiano, Maria; Bonifacio, Andrea Soares

Keywords: BIPARTITE GRAPHS, SPECTRA, EIGENVALUES

Abstract

Considering a consequence of the Cauchy-Schwarz inequality we obtain a sharp upper bound of the energy of a bipartite graph and a large family graphs, namely those graphs whose adjacency matrix is partitioned into blocks with constant row sum.

Más información

Título de la Revista: MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY
Volumen: 74
Número: 2
Editorial: UNIV KRAGUJEVAC, FAC SCIENCE
Fecha de publicación: 2015
Página de inicio: 307
Página final: 320
Idioma: ENGLISH
URL: http://match.pmf.kg.ac.rs/electronic_versions/Match74/n2/match74n2_307-320.pdf
Notas: ISI Q2