dc.creator | Yan, Wen | |
dc.date | 2011-05-25 | |
dc.identifier | http://www.revistaproyecciones.cl/article/view/77-90 | |
dc.identifier | 10.4067/S0716-09172011000100008 | |
dc.description | Given two strictly upper triangular matrices X, Y ? Cm×m, we study the range WY (X) = {trnXn-1Y* : n ? N}, where N is the group of unit upper triangular matrices in Cm×m. We prove that it is either a point or the whole complex plane. We characterize when it is a point. We also obtain some convexity result for a similar range, where N is replaced by any ball of Ck(k = m(m - 1)/2) embedded in N , m = 4. | es-ES |
dc.format | application/pdf | |
dc.language | spa | |
dc.publisher | Universidad Católica del Norte. | es-ES |
dc.relation | http://www.revistaproyecciones.cl/article/view/77-90/pdf | |
dc.rights | Derechos de autor 2011 Proyecciones. Journal of Mathematics | es-ES |
dc.source | Proyecciones. Journal of Mathematics; Vol 30 No 1 (2011); 77-90 | en-US |
dc.source | Proyecciones. Revista de Matemática; Vol. 30 Núm. 1 (2011); 77-90 | es-ES |
dc.source | 0717-6279 | |
dc.source | 0716-0917 | |
dc.title | Numerical range of a pair of strictly upper triangular matrices | es-ES |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |
dc.type | Artículo revisado por pares | es-ES |