The Range of a Contractive Projection in Lp(H)
Résumé
We show that the range of a contractive projection on a Lebesgue-Bochner space of Hilbert valued functions Lp(H) is isometric to a p-direct sum of Hilbertvalued Lp-spaces. We explicit the structure of contractive projections. As a consequence for every 1 < p < 1 the class Cp of p-direct sums of Hilbertvalued Lp-spaces is axiomatizable (in the class of all Banach spaces).
Domaines
Mathématiques [math]
Origine : Fichiers produits par l'(les) auteur(s)
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