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Título
Ruling Out Certain 5-Spectra for the Symmetric Nonnegative Inverse Eigenvalue Problem
Año del Documento
2017
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Linear Algebra and its Applications, 2017, vol. 512, p. 129-135
Zusammenfassung
A method is developed to show that certain spectra cannot be realized for the S-NIEP. It is applied in the 5-by-5 case to rule out many spectra that were previously unresolved. These are all in the case of 3 positive and 2 negative eigenvalues as all other cases are now resolved. For spectra of the sort we discuss, a diagram is given of the spectra that are excluded here, as well as those trivially realizable, those realizable because of the trace 0 case and those that may also be excluded because of the J–L–L conditions. A small region remains unresolved; it is a very small fraction of the area of those spectra we consider.
Materias (normalizadas)
Álgebra
Simetría
ISSN
0024-3795
Revisión por pares
SI
Version del Editor
Propietario de los Derechos
© 2017 Elsevier
Idioma
eng
Derechos
openAccess
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