Publication
Explicit almost-periodic factorization for a class of triangular matrix functions
| dc.contributor.author | Câmara, Maria Cristina | |
| dc.contributor.author | Martins, Maria do Carmo | |
| dc.date.accessioned | 2014-01-15T16:23:19Z | |
| dc.date.available | 2014-01-15T16:23:19Z | |
| dc.date.issued | 2007-12 | |
| dc.date.updated | 2013-12-27T17:26:03Z | |
| dc.description | Copyright © 2007 Springer, Part of Springer Science+Business Media. | en |
| dc.description.abstract | The canonical generalized factorization of a class of 2×2 triangular matrix symbols associated to convolution operators on a finite interval is studied. A case is considered in which the non-diagonal entry is an almost-periodic trinomial whose spectrum consists of the point zero and two other points of different signs whose distance is less than 1. Explicit formulas for the factors of such a factorization are obtained. | en |
| dc.description.abstract | RÉSUMÉ: Nous étudions la factorisation généralisée canonique d’une classe de symboles matriciels triangulaires de type 2×2 qui sont associés à des opérateurs de convolution sur l’intervalle compacte. Nous considérons un cas où l’élément non-nul de la diagonale secondaire est un polynôme presque-périodique dont le spectre consiste du point zéro et de deux autres points de signes différents, à distance inferieure à 1. Nous obtenons des formules explicites pour les facteurs de cette factorisation. | fra |
| dc.identifier.citation | Câmara, M.C.; Martins, M.C. (2007). "Explicit almost-periodic factorization for a class of triangular matrix functions", «Journal d'Analyse Mathématique», 103( 1): 221-260. http://dx.doi.org/10.1007/s11854-008-0007-7. | en |
| dc.identifier.issn | 0021-7670 (Print) | |
| dc.identifier.issn | 1565-8538 (Online) | |
| dc.identifier.uri | http://hdl.handle.net/10400.3/2604 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Springer-Verlag | por |
| dc.relation.publisherversion | http://dx.doi.org/10.1007/s11854-008-0007-7 | por |
| dc.subject | Matrix Function | en |
| dc.title | Explicit almost-periodic factorization for a class of triangular matrix functions | en |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 260 | por |
| oaire.citation.issue | (1) | por |
| oaire.citation.startPage | 221 | por |
| oaire.citation.title | Journal d'Analyse Mathématique | fra |
| oaire.citation.volume | 103 | por |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |