Inequality of the Kolmogorov type for operators and extremal problems of approximation theory (Q5937516)

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scientific article; zbMATH DE number 1619377
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Inequality of the Kolmogorov type for operators and extremal problems of approximation theory
scientific article; zbMATH DE number 1619377

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    Inequality of the Kolmogorov type for operators and extremal problems of approximation theory (English)
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    16 July 2001
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    The authors investigate abstract versions (in real linear spaces) of the classical Kolmogorov inequality \[ \|x^{(k)}\|_{L_p(G)}\leq K\|x\|^\alpha_{L_q(G)} \|x^{(r)}\|^{1- \alpha}_{L_s(G)}, \] where \(0< k< r\) and \(0< \alpha< 1\).
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    Kolmogorov inequality
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