Upper triangular operator matrices and limit points of the essential spectrum

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Upper triangular operator matrices and limit points of the essential spectrum

Abstract In this paper, we investigate the limit points set of essential spectrum of upper triangular operator matrices We prove that accσe(MC) ∪ W = accσe(A) ∪ accσe(B) where W is the union of certain holes in accσe(MC), which happen to b...

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Detalles Bibliográficos
Autores principales:	Karmouni,M., Tajmouati,A., Bakkali,A. El
Lenguaje:	English
Publicado:	Universidad Católica del Norte, Departamento de Matemáticas 2019
Materias:	Fredholm operator Essential spectra Limit point Operator matrices. 47A10 47A11
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-09172019000300401
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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