General form of linear functionals on Hardy spaces (Q1431393)

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scientific article; zbMATH DE number 2070747
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General form of linear functionals on Hardy spaces
scientific article; zbMATH DE number 2070747

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    General form of linear functionals on Hardy spaces (English)
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    8 June 2004
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    It is proved that the dual space of the martingale Hardy space \({\mathcal H}_\Phi\) is \({\mathcal K}_\Psi\), where the Young function \(\Phi\) has finite power and its conjugate function \(\Psi\) is of the form \(\Psi(x)=\Psi_1(x^2)\) with \(\Psi_1\) being also a Young function.
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    Hardy spaces
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    Young function
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    Orlicz spaces
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