Uniform minimality, unconditionality and interpolation in backward shift invariant spaces
Langue
en
Article de revue
Ce document a été publié dans
Annales de l'Institut Fourier. 2010, vol. 60, n° 1, p. 1879-1903
Association des Annales de l'Institut Fourier
Résumé en anglais
We discuss relations between uniform minimality, unconditionality and interpolation for families of reproducing kernels in backward shift invariant subspaces. This class of spaces contains as prominent examples the ...Lire la suite >
We discuss relations between uniform minimality, unconditionality and interpolation for families of reproducing kernels in backward shift invariant subspaces. This class of spaces contains as prominent examples the Paley-Wiener spaces for which it is known that uniform minimality does in general neither imply interpolation nor unconditionality. Hence, contrarily to the situation of standard Hardy spaces (and other scales of spaces), changing the size of the space seems %in this context necessary to deduce unconditionality or interpolation from uniform minimality. Such a change can take two directions: lowering the power of integration, or ''increasing'' the defining inner function (e.g.\ increasing the type in the case of Paley-Wiener space). Khinchin's inequalities play a substantial rôle in the proofs of our main results.< Réduire
Mots clés en anglais
Uniform minimality
unconditional bases
model spaces
Paley-Wiener spaces
interpolation
one-component inner functions
Origine
Importé de halUnités de recherche