Structured distance to normality of tridiagonal matrices

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Bebiano, N (Autor) Outra; Susana Borges Furtado (Autor) FEP

Revista

Título: Linear Algebra and Its Applications

Vol. 552

Páginas: 239-255

ISSN: 0024-3795

Editora: Elsevier

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 8 Citações

Outras Informações

ID Authenticus: P-00N-YVX

DOI: 10.1016/j.laa.2018.04.023

Abstract (EN): In this article we study the distance d, measured in the Frobenius norm, of a tridiagonal matrix T to the set I-T of similarly structured irreducible normal matrices. The matrices in the closure of I-T whose distance to T is d are characterized. Known results in the literature for the cases in which T is real or a Toeplitz matrix are recovered. In addition, the special case in which T is a 2-Toeplitz matrix is considered.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17