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\(m\)-isometric weighted shifts and reflexivity of some operators - MaRDI portal

\(m\)-isometric weighted shifts and reflexivity of some operators (Q1951347)

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scientific article; zbMATH DE number 6170754
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\(m\)-isometric weighted shifts and reflexivity of some operators
scientific article; zbMATH DE number 6170754

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    \(m\)-isometric weighted shifts and reflexivity of some operators (English)
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    5 June 2013
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    In this paper, the authors characterize all \(m\)-isometric unilateral weighted shift operators that are not \(m-1\)-isometrics in terms of their weight sequences. Also, they discuss the reflexivity of a contraction whose spectrum is the closed unit disc and the reflexivity of non-negative integer powers of hyponormal \(m\)-isometries.
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    reflexive operator
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    \(m\)-isometry
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    contraction
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    hyponormal operator
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    von Neumann operator
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    unilateral weighted shift
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