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      Completeness of spaces wth Toeplitz decompositions  [Article]

      Paúl Escolano, Pedro José; Sáez Agullo, Carmen; Virués Gavira, Juan Manuel (Real Academia de Ciencias Exactas, Físicas y Naturales, 1998)
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      On Pták's generalization of Hankel operators  [Article]

      Hernández Mancera, Carmen; Paúl Escolano, Pedro José (Springer, 2001)
      In 1997 Pták defined generalized Hankel operators as follows: Given two contractions T1 ∈ B(H1) and T2 ∈ B(H2), an operator X: H1 → H2 is said to be a generalized Hankel operator if T2X = XT ∗ 1 and X satisfies a ...