Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2

Detalhes bibliográficos
Autor(a) principal: Poltroniere, S.c. [UNESP]
Data de Publicação: 2016
Outros Autores: Soler, E.m. [UNESP], Bruno-alfonso, A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5540/tema.2016.017.01.0113
http://hdl.handle.net/11449/213387
Resumo: The problem of joint approximate diagonalization of symmetric real matrices is addressed. It is reduced to an optimization problem with the restriction that the matrix of the similarity transformation is orthogonal. Analytical solutions are derived for the case of matrices of order 2. The concepts of off-diagonalizing vectors, matrix amplitude, which is given in terms of the eigenvalues, and partially complementary matrices are introduced. This leads to a geometrical interpretation of the joint approximate diagonalization in terms of eigenvectors and off-diagonalizing vectors of the matrices. This should be helpful to deal with numerical and computational procedures involving high-order matrices.
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spelling Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2joint approximate diagonalizationeigenvectorsoptimizationdiagonalização conjunta aproximadaautovetoresotimizaçãoThe problem of joint approximate diagonalization of symmetric real matrices is addressed. It is reduced to an optimization problem with the restriction that the matrix of the similarity transformation is orthogonal. Analytical solutions are derived for the case of matrices of order 2. The concepts of off-diagonalizing vectors, matrix amplitude, which is given in terms of the eigenvalues, and partially complementary matrices are introduced. This leads to a geometrical interpretation of the joint approximate diagonalization in terms of eigenvectors and off-diagonalizing vectors of the matrices. This should be helpful to deal with numerical and computational procedures involving high-order matrices.Este trabalho aborda o problema da diagonalização conjunta aproximada de uma coleção de matrizes reais e simétricas. A otimização é realizada com a restrição de que a matriz de transformação de semelhança seja ortogonal. As soluções são apresentadas de forma analítica para matrizes de ordem 2. São introduzidos os conceitos de vetor anti-diagonalizante, amplitude de uma matriz, que é expressa em termos dos autovalores, e matrizes parcialmente complementares. Isto permite fazer uma interpretação geométrica da diagonalização conjunta aproximada, em termos dos autovetores e dos vetores anti-diagonalizantes das matrizes. Esta contribuição deve auxiliar na melhoria de procedimentos numéricos e computacionais envolvendo matrizes de ordem maior que 2.UNESP - Universidade Estadual Paulista, Faculdade de CiênciasUNESP - Universidade Estadual Paulista, Faculdade de CiênciasSociedade Brasileira de Matemática Aplicada e ComputacionalUniversidade Estadual Paulista (Unesp)Poltroniere, S.c. [UNESP]Soler, E.m. [UNESP]Bruno-alfonso, A. [UNESP]2021-07-14T10:54:31Z2021-07-14T10:54:31Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article113-126application/pdfhttp://dx.doi.org/10.5540/tema.2016.017.01.0113TEMA (São Carlos). Sociedade Brasileira de Matemática Aplicada e Computacional, v. 17, n. 1, p. 113-126, 2016.1677-19662179-8451http://hdl.handle.net/11449/21338710.5540/tema.2016.017.01.0113S2179-84512016000100113S2179-84512016000100113.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTEMA (São Carlos)info:eu-repo/semantics/openAccess2024-04-29T14:59:54Zoai:repositorio.unesp.br:11449/213387Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T14:59:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
title Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
spellingShingle Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
Poltroniere, S.c. [UNESP]
joint approximate diagonalization
eigenvectors
optimization
diagonalização conjunta aproximada
autovetores
otimização
title_short Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
title_full Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
title_fullStr Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
title_full_unstemmed Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
title_sort Joint Approximate Diagonalization of Symmetric Real Matrices of Order 2
author Poltroniere, S.c. [UNESP]
author_facet Poltroniere, S.c. [UNESP]
Soler, E.m. [UNESP]
Bruno-alfonso, A. [UNESP]
author_role author
author2 Soler, E.m. [UNESP]
Bruno-alfonso, A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Poltroniere, S.c. [UNESP]
Soler, E.m. [UNESP]
Bruno-alfonso, A. [UNESP]
dc.subject.por.fl_str_mv joint approximate diagonalization
eigenvectors
optimization
diagonalização conjunta aproximada
autovetores
otimização
topic joint approximate diagonalization
eigenvectors
optimization
diagonalização conjunta aproximada
autovetores
otimização
description The problem of joint approximate diagonalization of symmetric real matrices is addressed. It is reduced to an optimization problem with the restriction that the matrix of the similarity transformation is orthogonal. Analytical solutions are derived for the case of matrices of order 2. The concepts of off-diagonalizing vectors, matrix amplitude, which is given in terms of the eigenvalues, and partially complementary matrices are introduced. This leads to a geometrical interpretation of the joint approximate diagonalization in terms of eigenvectors and off-diagonalizing vectors of the matrices. This should be helpful to deal with numerical and computational procedures involving high-order matrices.
publishDate 2016
dc.date.none.fl_str_mv 2016
2021-07-14T10:54:31Z
2021-07-14T10:54:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.5540/tema.2016.017.01.0113
TEMA (São Carlos). Sociedade Brasileira de Matemática Aplicada e Computacional, v. 17, n. 1, p. 113-126, 2016.
1677-1966
2179-8451
http://hdl.handle.net/11449/213387
10.5540/tema.2016.017.01.0113
S2179-84512016000100113
S2179-84512016000100113.pdf
url http://dx.doi.org/10.5540/tema.2016.017.01.0113
http://hdl.handle.net/11449/213387
identifier_str_mv TEMA (São Carlos). Sociedade Brasileira de Matemática Aplicada e Computacional, v. 17, n. 1, p. 113-126, 2016.
1677-1966
2179-8451
10.5540/tema.2016.017.01.0113
S2179-84512016000100113
S2179-84512016000100113.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv TEMA (São Carlos)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 113-126
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Matemática Aplicada e Computacional
publisher.none.fl_str_mv Sociedade Brasileira de Matemática Aplicada e Computacional
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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