On operators that preserve the Radon-Nikodým property
- Martínez Abejón, Antonio
- Pello-García, Javier
- González Velasco, Miguel
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1
Universidad de Oviedo
info
ISSN: 0213-8743
Año de publicación: 2007
Título del ejemplar: Banach space theory: classical topics and new directions. Cáceres 2006
Volumen: 22
Número: 2
Páginas: 191-196
Tipo: Artículo
Otras publicaciones en: Extracta mathematicae
Resumen
We consider a certain class RN+ of operators that preserve the Radon-Nikod´ym property. Conjugate operators in RN+ can be characterized as those operators T such that the kernel N(T+K) has the Radon-Nikod´ym property for every compact operator K. A construction by J. Bourgain involving infinite convolution products of measures in the Cantor group provides examples of operators T : L1 ! L1 in the class RN+. As an application, we show the existence of Banach spaces which are L1-spaces, have the Radon- Nikod´ym property and contain infinite-dimensional reflexive subspaces