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On Hardy's theory of \(m\)-functions. - MaRDI portal

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On Hardy's theory of \(m\)-functions. (Q1440962)

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scientific article; zbMATH DE number 2576664
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English
On Hardy's theory of \(m\)-functions.
scientific article; zbMATH DE number 2576664

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    On Hardy's theory of \(m\)-functions. (English)
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    1928
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    Es wird auf funktionentheoretischem Wege der schon bekannte Satz bewiesen, der aus der Konvergenz der Reihen \[ \sum_!^\infty \frac{| a_n \log n|}{n},\;\sum_1^\infty \frac{| a_{-n} \log n|}{n} \] die Funktion \[ C(x)=\sum_{-\infty}^{+\infty} a_n \frac{\sin \pi(x-n)}{\pi(x-n)} \] als Lösung der Integralgleichung \[ f(x)=\int_{-\infty}^{+\infty} \frac{\sin m(x-t)}{\pi(x-t)}f(t)dt \] erkennt für \(m \geqq \pi\). (IV 7.)
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