On the structure of spaces of uniformly convergent Fourier series

• Autores: Pascal Lefèvre, Luis Rodríguez Piazza
• Localización: Mathematische Annalen, ISSN 0025-5831, Vol. 338, Nº. 1, 2007, págs. 11-31
• Idioma: inglés
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• Resumen

  • We first give some new examples of translation invariant subspaces of C or U without local unconditional structure. In the second part, we prove that U and U + do not have the Gordon¿Lewis property. In the third part, we show that absolutely summing operators from U to a K-convex space are compact. As a consequence, U and U + are not isomorphic. At last, we prove that U and U + do not have the Daugavet property.