Inversion formula for the windowed Fourier transform (Q2888906)

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scientific article; zbMATH DE number 6042723
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Inversion formula for the windowed Fourier transform
scientific article; zbMATH DE number 6042723

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    Inversion formula for the windowed Fourier transform (English)
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    4 June 2012
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    Fourier transforms
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    windowed Fourier transforms
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    inversion formula
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    The author shows that the integral NEWLINE\[NEWLINE\frac{1}{2\pi\overline{g(0)}}\int_{\mathbb{R}}{(F_{g}f)(x,w)e^{ixw}dw}NEWLINE\]NEWLINE is convergent in \(L^{p}(\mathbb{R})\) for all \(1<p<\infty\). He also proves that the integral involved in the formula is convergent almost everywhere on \(\mathbb{R}\) for all \(1<p<\infty\), by using the Carleson-Hunt theorem. The following section of the paper presents an inversion formula for recovering a function from its window Fourier transform. The remarks, proofs and various justifications given are useful for one who desires to work on this field.
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