• On perfectly homogeneous bases in quasi-Banach spaces 

      Albiac Alesanco, Fernando José Upna; Leránoz Istúriz, María Camino Upna (Hindawi Publishing Corporation, 2009)   Artículo / Artikulua  OpenAccess
      For 0 < p < infinity the unit vector basis of l(p) has the property of perfect homogeneity: it is equivalent to all its normalized block basic sequences, that is, perfectly homogeneous bases are a special case of symmetric ...
    • The Tsirelson space tau (p) has a unique unconditional basis up to permutation for 0 < p < 1 

      Albiac Alesanco, Fernando José Upna; Leránoz Istúriz, María Camino Upna (Hindawi Publishing Corporation, 2009)   Artículo / Artikulua  OpenAccess
      We show that the p-convexified Tsirelson space tau((p)) for 0 < p < 1 and all its complemented subspaces with unconditional basis have unique unconditional basis up to permutation. The techniques involved in the proof are ...