Question

Cantor Lebesgue theorem (Stein & Shakarchi Real Analysis problem)

score 85 · Answer 1 · 2023-05-13 15:08:32

85

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Cantor Lebesgue theorem (Stein & Shakarchi Real Analysis problem)

Published on 13 May 2023 - 15:08

score 24 · Answer 2 · 2026-03-25 09:49:26

24

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FTT Features to use after time-domain is transformed to frequency-domain

Published on 25 Mar 2026 - 9:49

score 291 · Answer 3 · 2026-04-01 10:41:32

291

Views

Squaring the output of a frequency-time space conversion map

Published on 01 Apr 2026 - 10:41

score 82 · Answer 4 · 2026-03-31 17:53:22

82

Views

Solving 1D Boundary Value Problem using Discrete Fourier Transform. I am trying to solve it in Matlab, where did I mess up?

Published on 31 Mar 2026 - 17:53

score 51 · Answer 5 · 2026-03-25 14:00:30

51

Views

Solving Laplacian in $\mathbb{R}^2$

Published on 25 Mar 2026 - 14:00

score 139 · Answer 6 · 2023-05-15 03:09:31

139

Views

Asymptotic behavior of the inverse Fourier transform of $\frac{1}{|k|^2 + 1}$

Published on 15 May 2023 - 3:09

score 67 · Answer 7 · 2023-05-15 05:50:59

67

Views

Justifying taking Fourier transform of derivatives

Published on 15 May 2023 - 5:50

score 79 · Answer 8 · 2023-05-15 15:42:44

79

Views

Computing a Fourier transform with an Exponential

Published on 15 May 2023 - 15:42

score 213 · Answer 9 · 2026-03-27 11:47:45

213

Views

Finding the Fourier transform with the Cauchy residue theorem or integration in the complex plane

Published on 27 Mar 2026 - 11:47

score 28 · Answer 10 · 2026-03-29 10:58:59

28

Views

Positivity of the Fourier transform: prove or disprove that $\operatorname{Re}(\overline{\widehat{u}}(\xi) \widehat{F\circ u}(\xi))\geq0$

Published on 29 Mar 2026 - 10:58

score 153 · Answer 11 · 2026-03-28 15:26:54

153

Views

Using Fourier Transforms to Solve Heat Equation (3-D)

Published on 28 Mar 2026 - 15:26

score 98 · Answer 12 · 2026-03-28 16:20:45

98

Views

Fourier transform of one dimensional markov chain

Published on 28 Mar 2026 - 16:20

score 255 · Answer 13 · 2023-05-18 07:59:40

255

Views

Plancherel Theorem in Rudin's Real and Complex Analysis (theorem 9.13)

Published on 18 May 2023 - 7:59

score 26 · Answer 14 · 2023-05-18 15:16:06

26

Views

Estimates using solution of PDE in Fourier space

Published on 18 May 2023 - 15:16

score 43 · Answer 15 · 2023-05-19 07:57:57

43

Views

Any constant function is a Fourier Multiplier in $L^p(\mathbb{R}^n)$?

Published on 19 May 2023 - 7:57

List Question

Cantor Lebesgue theorem (Stein & Shakarchi Real Analysis problem)

FTT Features to use after time-domain is transformed to frequency-domain

Squaring the output of a frequency-time space conversion map

Solving 1D Boundary Value Problem using Discrete Fourier Transform. I am trying to solve it in Matlab, where did I mess up?

Solving Laplacian in $\mathbb{R}^2$

Asymptotic behavior of the inverse Fourier transform of $\frac{1}{|k|^2 + 1}$

Justifying taking Fourier transform of derivatives

Computing a Fourier transform with an Exponential

Finding the Fourier transform with the Cauchy residue theorem or integration in the complex plane

Positivity of the Fourier transform: prove or disprove that $\operatorname{Re}(\overline{\widehat{u}}(\xi) \widehat{F\circ u}(\xi))\geq0$

Using Fourier Transforms to Solve Heat Equation (3-D)

Fourier transform of one dimensional markov chain

Plancherel Theorem in Rudin's Real and Complex Analysis (theorem 9.13)

Estimates using solution of PDE in Fourier space

Any constant function is a Fourier Multiplier in $L^p(\mathbb{R}^n)$?

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