| dc.creator | Tajmouati, A. | |
| dc.creator | Abkari, M. | |
| dc.creator | Karmouni, M. | |
| dc.date | 2018-03-15 | |
| dc.date.accessioned | 2019-11-14T12:00:57Z | |
| dc.date.available | 2019-11-14T12:00:57Z | |
| dc.identifier | https://www.revistaproyecciones.cl/article/view/2784 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/113604 | |
| dc.description | In this paper, we investigate the limit points set of surjective and approximate point spectra of upper triangular operator matrices . We prove that σ*(MC) ∪ W=σ*(A)∪ σ*(B) where W is the union of certain holes in σ*(MC), which happen to be subsets of σ lgD(B) ∩ σrgD(A), σ* ∈ {σlgD, σrgD} are the limit points set of surjective and approximate point spectra. Furthermore, several sufficient conditions for σ* (MC) = σ* (A)∪σ* (B) holds for every C ∈ ℬ(Y,X) are given. | en-US |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Universidad Católica del Norte. | es-ES |
| dc.relation | https://www.revistaproyecciones.cl/article/view/2784/2354 | |
| dc.rights | Derechos de autor 2018 Proyecciones. Journal of Mathematics | es-ES |
| dc.source | Proyecciones. Journal of Mathematics; Vol 37 No 1 (2018); 119-131 | en-US |
| dc.source | Proyecciones. Revista de Matemática; Vol. 37 Núm. 1 (2018); 119-131 | es-ES |
| dc.source | 0717-6279 | |
| dc.source | 0716-0917 | |
| dc.subject | Surjective spectrum | en-US |
| dc.subject | Approximate point spectrum | en-US |
| dc.subject | Generalized Drazin spectrum | en-US |
| dc.subject | Single-valued extension property | en-US |
| dc.subject | Operator matrices | en-US |
| dc.title | Generalized Drazin-type spectra of Operator matrices. | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Artículo revisado por pares | es-ES |
