info:eu-repo/semantics/article
Nullspaces and frames
Fecha
2005-09Registro en:
Antezana, Jorge Abel; Corach, Gustavo; Ruiz, Mariano Andres; Stojanoff, Demetrio; Nullspaces and frames; Academic Press Inc Elsevier Science; Journal of Mathematical Analysis and Applications; 309; 2; 9-2005; 709-723
0022-247X
CONICET Digital
CONICET
Autor
Antezana, Jorge Abel
Corach, Gustavo
Ruiz, Mariano Andres
Stojanoff, Demetrio
Resumen
In this paper we give new characterizations of Riesz and conditional Riesz frames in terms of the properties of the nullspace of their synthesis operators. On the other hand, we also study the oblique dual frames whose coefficients in the reconstruction formula minimize different weighted norms.