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On Schur multiplier norm and unitaries - MaRDI portal

On Schur multiplier norm and unitaries (Q1881601)

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scientific article; zbMATH DE number 2106534
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On Schur multiplier norm and unitaries
scientific article; zbMATH DE number 2106534

    Statements

    On Schur multiplier norm and unitaries (English)
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    5 October 2004
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    A sufficient condition for an infinite matrix having its norm as an operator on \(l^{2}\) the same as its Schur multiplier norm is given. The distance from a give matrix to the unitaries is also investigated.
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    Schur product
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    Hadamard product
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    Schur multiplier norm
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    infinite matrix
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