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The Landau problem for bounded nonvanishing functions - MaRDI portal

The Landau problem for bounded nonvanishing functions (Q1301980)

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scientific article; zbMATH DE number 1334878
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The Landau problem for bounded nonvanishing functions
scientific article; zbMATH DE number 1334878

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    The Landau problem for bounded nonvanishing functions (English)
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    10 October 2000
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    The problem of finding: \[ L_n(B_0):=\sup|a_0+a_1+ \cdots+ a_n |, \quad n\geq 1, \] for the class \(B_0\) of holomorphic bounded and nonvanishing functions \(f(z)=a_0+ a_1z+ \dots\) in the unit disk \(|z|<1\) is discussed.
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    bounded nonvanishing functions
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