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https://hdl.handle.net/1822/3917| Título: | About the von Neumann regularity of triangular block matrices |
| Autor(es): | Patrício, Pedro Puystjens, Roland |
| Palavras-chave: | Block matrices over rings von Neumann regularity Triangular Toeplitz matrices |
| Data: | 1-Ago-2001 |
| Editora: | Elsevier 1 |
| Revista: | Linear Algebra and its Applications |
| Citação: | "Linear Algebra and its Applications". ISSN 0024-3795. 332/334 (2001) 485-502. |
| Resumo(s): | Necessary and sufficient conditions are given for the von Neumann regularity of triangular block matrices with von Neumann regular diagonal blocks over arbitrary rings. This leads to the characterization of the von Neumann regularity of a class of triangular Toeplitz matrices over arbitrary rings. Some special results and a new algorithm are derived for triangular Toeplitz matrices over commutative rings. Finally, the Drazin invertibility of some companion matrices over arbitrary rings is considered, as an application. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/3917 |
| DOI: | 10.1016/S0024-3795(01)00295-6 |
| ISSN: | 0024-3795 |
| Versão da editora: | http://www.elsevier.com/wps/find/journaldescription.cws_home/522483/description#description |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| Toeplitz.pdf | 169,14 kB | Adobe PDF | Ver/Abrir |
