Combined matrices of almost strictly sign regular matrices
Alonso, P. ; Peña, J.M. (Universidad de Zaragoza) ; Serrano, M.L.
Resumen: The combined matrix is a very useful concept for many applications. Almost strictly sign regular (ASSR) matrices form an important structured class of matrices with two possible zero patterns, which are either type-I staircase or type-II staircase. We prove that, under an irreducibility condition, the pattern of zero and nonzero entries of an ASSR matrix is preserved by the corresponding combined matrix. Without the irreducibility condition, it is proved that type-I and type-II staircases are still preserved. Illustrative numerical examples are included.
Idioma: Inglés
DOI: 10.1016/j.cam.2018.09.029
Año: 2018
Publicado en: Journal of Computational and Applied Mathematics 354 (2018), 144 - 151
ISSN: 0377-0427
Factor impacto JCR: 1.883 (2018)
Categ. JCR: MATHEMATICS, APPLIED rank: 47 / 254 = 0.185 (2018) - Q1 - T1
Factor impacto SCIMAGO: 0.849 - Computational Mathematics (Q2) - Applied Mathematics (Q2)
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MTM2015-65433-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MTM2017-90682-REDT
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TIN2017-87600-P
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Matemática Aplicada (Dpto. Matemática Aplicada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.
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Idioma: Inglés
DOI: 10.1016/j.cam.2018.09.029
Año: 2018
Publicado en: Journal of Computational and Applied Mathematics 354 (2018), 144 - 151
ISSN: 0377-0427
Factor impacto JCR: 1.883 (2018)
Categ. JCR: MATHEMATICS, APPLIED rank: 47 / 254 = 0.185 (2018) - Q1 - T1
Factor impacto SCIMAGO: 0.849 - Computational Mathematics (Q2) - Applied Mathematics (Q2)
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MTM2015-65433-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MTM2017-90682-REDT
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/TIN2017-87600-P
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Matemática Aplicada (Dpto. Matemática Aplicada)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Exportado de SIDERAL (2020-05-13-00:50:35)
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Record created 2019-10-25, last modified 2020-05-13