Articulo
A lower bound for the energy of symmetric matrices and graphs
Fecha
2017Registro en:
1151131
WOS:000389288700017
Institución
Resumen
The energy of a symmetric matrix is the sum of the absolute values of its eigenvalues. We introduce a lower bound for the energy of a symmetric matrix partitioned into blocks. This bound is related to the spectrum of its quotient matrix. Furthermore, we