List questions from fourier-analysis

Published on 27 Mar 2026 - 10:11

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Multiband sampling

Published on 26 Mar 2026 - 8:04

161

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Interpretation of Fourier Transformation - what is it?

Published on 25 Mar 2026 - 1:37

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Computing the inverse of the operator $L:= f - \Delta f$.

Published on 28 Mar 2026 - 5:22

471

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Equivalent definition of Schwartz space

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Injectivity of the Generalized Fourier Transform

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Proving that real trigonometric polynomials are closed under multiplication

Published on 22 Dec 2018 - 23:16

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Applying the residue theorem to calculate the Fourier transform of $\frac{1}{(x-\tau)^k}$

Published on 25 Mar 2026 - 17:42

54

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Trouble understanding steps in convolution

Published on 26 Mar 2026 - 20:36

121

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When does "Gaussian integrability" imply regular integrability?

Published on 25 Mar 2026 - 8:05

95

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How is Parseval’s theorem applied on this equation?

Published on 28 Mar 2026 - 6:59

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If we use a sinusoidal signal as an input signal to a linear transmission path, then we always get out a sine wave of the same period/frequency

Published on 25 Mar 2026 - 22:26

759

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Finding the envelope frequency of a sinusoid (From a musical major triad)

Published on 25 Mar 2026 - 9:50

54

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Finding Fourier Series Trouble

Published on 28 Mar 2026 - 2:22

94

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Function from weighted $L^p$ whith Fourier transform supported on finite measure set

Published on 25 Dec 2018 - 20:50

List Question

Is there an elementary proof of Fourier's Theorem?

Multiband sampling

Interpretation of Fourier Transformation - what is it?

Computing the inverse of the operator $L:= f - \Delta f$.

Equivalent definition of Schwartz space

Injectivity of the Generalized Fourier Transform

Proving that real trigonometric polynomials are closed under multiplication

Applying the residue theorem to calculate the Fourier transform of $\frac{1}{(x-\tau)^k}$

Trouble understanding steps in convolution

When does "Gaussian integrability" imply regular integrability?

How is Parseval’s theorem applied on this equation?

If we use a sinusoidal signal as an input signal to a linear transmission path, then we always get out a sine wave of the same period/frequency

Finding the envelope frequency of a sinusoid (From a musical major triad)

Finding Fourier Series Trouble

Function from weighted $L^p$ whith Fourier transform supported on finite measure set

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