1. Let F : L² (R¹) → L²(R¹) be the Fourier transform. That is: 1 F(f) = = √e-i(+1) e-i(x,x) f(x) dx. (2π) m/2 Sam Rn Prove that the spectrum o(F) = {-1, 1, i, -i}.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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1. Let F: L²(R¹) → L²(R¹) be the Fourier transform. That is:
1
F(f) =
=
(277)n/2 √₂ e-i(^^A) f(x) dx.
Prove that the spectrum o(F) = {-1, 1, i, -i}.
Transcribed Image Text:1. Let F: L²(R¹) → L²(R¹) be the Fourier transform. That is: 1 F(f) = = (277)n/2 √₂ e-i(^^A) f(x) dx. Prove that the spectrum o(F) = {-1, 1, i, -i}.
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