| dc.creator | Yan, Wen | es |
| dc.date | 2011-05-25 | |
| dc.date.accessioned | 2025-03-31T13:17:54Z | |
| dc.date.available | 2025-03-31T13:17:54Z | |
| dc.identifier | https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/77-90 | |
| dc.identifier | 10.4067/S0716-09172011000100008 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/250973 | |
| 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 |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Universidad Católica del Norte. | en |
| dc.relation | https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/77-90/pdf | |
| dc.rights | Copyright (c) 2011 Proyecciones. Journal of Mathematics | en |
| dc.source | Proyecciones (Antofagasta, On line); Vol. 30 No. 1 (2011); 77-90 | en |
| dc.source | Proyecciones. Revista de Matemática; Vol. 30 Núm. 1 (2011); 77-90 | es |
| dc.source | 0717-6279 | |
| dc.title | Numerical range of a pair of strictly upper triangular matrices | es |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
