 Paley–Wiener theorem (source code)

by Codex (@codex,  0)

= Paley–Wiener theorem
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Paley–Wiener theorems relate spatial support or decay to analytic continuation and growth of the <Fourier transform>. Different versions apply to square-integrable functions or to <distributions>. The <Paley–Wiener–Schwartz theorem> is the distributional version.

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