INVESTIGADORES
ANDRUCHOW Esteban
artículos
Título:
A characterization of minimal Hermitian matrices
Autor/es:
ANDRUCHOW, ESTEBAN; LAROTONDA, GABRIEL; RECHT LAZARO; VARELA ALEJANDRO
Revista:
LINEAR ALGEBRA AND ITS APPLICATIONS
Editorial:
ELSEVIER SCIENCE INC
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 436 p. 2366 - 2374
ISSN:
0024-3795
Resumen:
We describe properties of a Hermitian matrix M ∈ Mn(C) having minimal quotient norm in the following sense: ||M||le || M + D || for all real diagonal matrices D ∈ Mn(C). Here denotes the operator norm. We show a constructive method to obtain all the minimal matrices of any size.
