Identificador persistente para citar o vincular este elemento:
http://hdl.handle.net/10662/10152
| Títulos: | Descent and essential descent spectrum of linear relations |
| Autores/as: | Chafai, Ezzeddine Mnif, Maher |
| Palabras clave: | Descent;Essential descent;Spectrum;Linear relations;Descenso;Descenso esencial;Espectro;Relaciones lineales |
| Fecha de publicación: | 2014 |
| Editor/a: | Universidad de Extremadura |
| Resumen: | In this paper, we study the descent spectrum and the essential descent spectrum of linear relations everywhere defined on Banach spaces. We prove that the corresponding spectra are closed and we obtain that a Banach space X is finite dimensional if and only if the descent and the essential descent of every closed linear relation acting in X is finite. We give characterizations of the descent and the essential descent of linear relations and as applications, some perturbation results are presented. |
| URI: | http://hdl.handle.net/10662/10152 |
| Colección: | Extracta Mathematicae Vol. 29, nº 1-2 (2014) |
Archivos
| Archivo | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| 2605-5686_29_1-2_117.pdf | 150,6 kB | Adobe PDF | Descargar |
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