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Campo DC | Valor | idioma |
---|---|---|
dc.contributor.author | Ben Brahim, Fatma | - |
dc.contributor.author | Jeribi, Aref | - |
dc.contributor.author | Krichen, Bilel | - |
dc.date.accessioned | 2018-12-10T11:06:51Z | - |
dc.date.available | 2018-12-10T11:06:51Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | http://hdl.handle.net/10662/8344 | - |
dc.description.abstract | The first aim of this paper is to show that a polynomially demicompact operator satisfying certain conditions is demicompact. Furthermore, we give a refinement of the Schmoëger and the Rakocević essential spectra of a closed linear operator involving the class of demicompact ones. The second aim of this work is devoted to provide some sufficient conditions on the inputs of a closable block operator matrix to ensure the demicompactness of its closure. An example involving the Caputo derivative of fractional of order α is provided. Moreover, a study of the essential spectra and an investigation of some perturbation results. | es_ES |
dc.format.extent | 22 p. | es_ES |
dc.format.mimetype | application/pdf | en_US |
dc.language.iso | eng | es_ES |
dc.publisher | Universidad de Extremadura | es_ES |
dc.rights | Atribución-NoComercial 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/es/ | * |
dc.subject | Operador matricial | es_ES |
dc.subject | Operadores lineales | es_ES |
dc.subject | Operadores Fredholm y semi-Fredholm | es_ES |
dc.subject | Teoría de la perturbación | es_ES |
dc.subject | Espectros esenciales | es_ES |
dc.subject | Matrix operator | en_US |
dc.subject | Demicompact linear operator | en_US |
dc.subject | Fredholm and semi-Fredholm operators | en_US |
dc.subject | Perturbation theory | en_US |
dc.subject | Essential spectra | en_US |
dc.title | Spectral properties for polynomial and matrix operators involving demicompactness classes | es_ES |
dc.type | article | es_ES |
dc.description.version | peerReviewed | es_ES |
europeana.type | TEXT | en_US |
dc.rights.accessRights | openAccess | es_ES |
dc.subject.unesco | 1202.01 Álgebra de Operadores | es_ES |
dc.subject.unesco | 1202 Análisis y Análisis Funcional | es_ES |
europeana.dataProvider | Universidad de Extremadura. España | es_ES |
dc.identifier.bibliographicCitation | Ben Brahim, F., Jeribi, A., Krichen, B. (2018). Spectral properties for polynomial and matrix operators involving demicompactness classes. Extracta Mathematicae 33 (1), 11-32. E-ISSN 2605-5686 | es_ES |
dc.type.version | publishedVersion | es_ES |
dc.contributor.affiliation | University of Sfax. Tunisia | en_US |
dc.relation.publisherversion | https://doi.org/10.17398/2605-5686.33.1.11 | es_ES |
dc.identifier.doi | 10.17398/2605-5686.33.1.11 | - |
dc.identifier.publicationtitle | Extracta Mathematicae | es_ES |
dc.identifier.publicationissue | 1 | es_ES |
dc.identifier.publicationfirstpage | 11 | es_ES |
dc.identifier.publicationlastpage | 32 | es_ES |
dc.identifier.publicationvolume | 33 | es_ES |
dc.identifier.e-issn | 2605-5686 | - |
Colección: | Extracta Mathematicae Vol. 33, nº 1 (2018) |
Archivos
Archivo | Descripción | Tamaño | Formato | |
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2605-5686_33_1_11.pdf | 147,43 kB | Adobe PDF | Descargar |
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