By means of successive partial substitutions it is possible to obtain new fixed point linear equations from old ones and it is interesting to determine how the spectral radius of the corresponding matrices varies. We prove that, when the original matrix is nonnegative, this variation is decreasing or increasing, depending on whether the original matrix has its spectral radius smaller or greater than 1. We answer in this way a question posed by F. Robert in [5]. © 1981 Springer-Verlag.
Documento: | Artículo |
Título: | On fixed point linear equations |
Autor: | Milaszewicz, J.P. |
Filiación: | Departmento de Matemática, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Buenos Aires, 1428, Argentina |
Palabras clave: | Subject Classifications: AMS(MOS): 65F10, 47B55, CR: 5.14 |
Año: | 1982 |
Volumen: | 38 |
Número: | 1 |
Página de inicio: | 53 |
Página de fin: | 59 |
DOI: | http://dx.doi.org/10.1007/BF01395808 |
Título revista: | Numerische Mathematik |
Título revista abreviado: | Numer. Math. |
ISSN: | 0029599X |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0029599X_v38_n1_p53_Milaszewicz |