On the numerical radius of an operator matrix

Autores
Sababheh, Mohammad; Conde, Cristian Marcelo; Moradi, Hamid Reza
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper investigates possible upper and lower bounds for the numerical radii of 2×2 operator matrices. The obtained results improve and generalize many results from the literature in accessible forms. Moreover, many numerical examples will be given to support the feasibility of our findings.
Fil: Sababheh, Mohammad. Princess Sumaya University For Technology; Jordania
Fil: Conde, Cristian Marcelo. Area de Matematica (area de Matematica) ; Instituto de Ciencias ; Universidad Nacional de General Sarmiento; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Moradi, Hamid Reza. Islamic Azad University; Irán
Materia
numerical radius
operator norm
operator matrix
Cartesian decomposition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/274884
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the numerical radius of an operator matrixSababheh, MohammadConde, Cristian MarceloMoradi, Hamid Rezanumerical radiusoperator normoperator matrixCartesian decompositionhttps://purl.org/becyt/ford/1.1https://purl.org/becyt/ford/1This paper investigates possible upper and lower bounds for the numerical radii of 2×2 operator matrices. The obtained results improve and generalize many results from the literature in accessible forms. Moreover, many numerical examples will be given to support the feasibility of our findings.Fil: Sababheh, Mohammad. Princess Sumaya University For Technology; JordaniaFil: Conde, Cristian Marcelo. Area de Matematica (area de Matematica) ; Instituto de Ciencias ; Universidad Nacional de General Sarmiento; . Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Moradi, Hamid Reza. Islamic Azad University; IránElement2024-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/274884Sababheh, Mohammad; Conde, Cristian Marcelo; Moradi, Hamid Reza; On the numerical radius of an operator matrix; Element; Mathematical Inequalities & Applications; 2; 8-2024; 417-4341331-4343CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://mia.ele-math.com/27-29info:eu-repo/semantics/altIdentifier/doi/10.7153/mia-2024-27-29info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-03T08:42:27Zoai:ri.conicet.gov.ar:11336/274884instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-03 08:42:27.793CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the numerical radius of an operator matrix
title On the numerical radius of an operator matrix
spellingShingle On the numerical radius of an operator matrix
Sababheh, Mohammad
numerical radius
operator norm
operator matrix
Cartesian decomposition
title_short On the numerical radius of an operator matrix
title_full On the numerical radius of an operator matrix
title_fullStr On the numerical radius of an operator matrix
title_full_unstemmed On the numerical radius of an operator matrix
title_sort On the numerical radius of an operator matrix
dc.creator.none.fl_str_mv Sababheh, Mohammad
Conde, Cristian Marcelo
Moradi, Hamid Reza
author Sababheh, Mohammad
author_facet Sababheh, Mohammad
Conde, Cristian Marcelo
Moradi, Hamid Reza
author_role author
author2 Conde, Cristian Marcelo
Moradi, Hamid Reza
author2_role author
author
dc.subject.none.fl_str_mv numerical radius
operator norm
operator matrix
Cartesian decomposition
topic numerical radius
operator norm
operator matrix
Cartesian decomposition
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.1
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This paper investigates possible upper and lower bounds for the numerical radii of 2×2 operator matrices. The obtained results improve and generalize many results from the literature in accessible forms. Moreover, many numerical examples will be given to support the feasibility of our findings.
Fil: Sababheh, Mohammad. Princess Sumaya University For Technology; Jordania
Fil: Conde, Cristian Marcelo. Area de Matematica (area de Matematica) ; Instituto de Ciencias ; Universidad Nacional de General Sarmiento; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Moradi, Hamid Reza. Islamic Azad University; Irán
description This paper investigates possible upper and lower bounds for the numerical radii of 2×2 operator matrices. The obtained results improve and generalize many results from the literature in accessible forms. Moreover, many numerical examples will be given to support the feasibility of our findings.
publishDate 2024
dc.date.none.fl_str_mv 2024-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/274884
Sababheh, Mohammad; Conde, Cristian Marcelo; Moradi, Hamid Reza; On the numerical radius of an operator matrix; Element; Mathematical Inequalities & Applications; 2; 8-2024; 417-434
1331-4343
CONICET Digital
CONICET
url http://hdl.handle.net/11336/274884
identifier_str_mv Sababheh, Mohammad; Conde, Cristian Marcelo; Moradi, Hamid Reza; On the numerical radius of an operator matrix; Element; Mathematical Inequalities & Applications; 2; 8-2024; 417-434
1331-4343
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://mia.ele-math.com/27-29
info:eu-repo/semantics/altIdentifier/doi/10.7153/mia-2024-27-29
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Element
publisher.none.fl_str_mv Element
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.275514

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