Perturbation of matrices diagonalizable under congruence

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Susana Borges Furtado (Autor) FEP; Johnson, CR (Autor) Outra

Revista

Título: SIAM Journal on Matrix Analysis and Applications

Vol. 28

Páginas: 81-88

ISSN: 0895-4798

Editora: Society for Industrial and Applied Mathematics

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-004-QRR

DOI: 10.1137/s089547980343775x

Abstract (EN): A matrix A is an element of M-n (C) is called unitoid if it is congruent to a diagonal matrix. Necessary and sufficient conditions are given on the canonical angles of a unitoid matrix so that sufficiently small perturbations remain unitoid. This, in particular, resolves the question of when simultaneous diagonalizability of two Hermitian matrices is retained under perturbation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8