Question

What is the limit (as a distribution) of this Fourier series, similar to that of a Dirac Delta?

score 75 · Answer 1 · 2026-03-31 06:33:32

75

Views

What is the limit (as a distribution) of this Fourier series, similar to that of a Dirac Delta?

Published on 31 Mar 2026 - 6:33

score 49 · Answer 2 · 2024-02-20 18:25:54

49

Views

In a fourier series if $a_0$ is equal to 0 is $a_n$ also equal to 0?

Published on 20 Feb 2024 - 18:25

score 66 · Answer 3 · 2026-03-31 14:28:29

66

Views

Jacobi-Anger expansion of Fourier series

Published on 31 Mar 2026 - 14:28

score 70 · Answer 4 · 2026-04-09 12:26:13

70

Views

Finding $MSE$ of optimal estimator

Published on 09 Apr 2026 - 12:26

score 32 · Answer 5 · 2024-02-25 05:52:56

32

Views

Why do we have the following equality $\sigma(z)=\sum_{i=1}^n\lambda_if(w_i)e^{w_iz}$

Published on 25 Feb 2024 - 5:52

score 76 · Answer 6 · 2024-02-27 19:34:11

76

Views

Fourier series expansion of a phase shifted quasi-square wave

Published on 27 Feb 2024 - 19:34

score 14 · Answer 7 · 2026-03-02 10:23:42

14

Views

Fourier series of Fourier series coefficients for discrete time Fourier series

Published on 02 Mar 2026 - 10:23

score 49 · Answer 8 · 2024-03-01 16:59:07

Does Fourier series of a function with period (2L) remains the same regardless of the specific range within that period in which function is defined?

score 24 · Answer 9 · 2026-04-09 11:38:45

24

Views

How do I show that the synthesis equation of the Fourier Transform equals the original function?

Published on 09 Apr 2026 - 11:38

score 45 · Answer 10 · 2026-04-01 10:30:59

45

Views

Any generalizations of ${}_2F_1\left(\genfrac{}{}{0pt}{0}{a,-a}{{1}/{2}};\sin^2x\right)=\cos(2ax)$?

Published on 01 Apr 2026 - 10:30

score 308 · Answer 11 · 2026-03-27 07:18:29

308

Views

Prove that if $\{a_{k}\}$ is a sequence of real numbers such that $\sum_{k=1}^{\infty} \frac{|a_{k}|}{k} = \infty$,

Published on 27 Mar 2026 - 7:18

score 48 · Answer 12 · 2026-03-29 22:28:57

48

Views

240 and 504 showing up in the sphere spectrum

Published on 29 Mar 2026 - 22:28

score 36 · Answer 13 · 2026-04-02 00:44:14

36

Views

No Riemann-integrable function has the harmonic series has Fourier coefficients

Published on 02 Apr 2026 - 0:44

score 59 · Answer 14 · 2024-03-08 15:52:28

59

Views

Determine $a$ such that $y''(t)+ay(t)=y(t+\pi)$ has a non-trivial solution solution with period $2\pi$, then obtain the solutions

Published on 08 Mar 2024 - 15:52

score 39 · Answer 15 · 2024-03-11 13:48:39

39

Views

Why $\sum|n^ka_n|<\infty$ implies $f \in C^k$ where $a_n$ is the $n-th$ Fourier coefficient of $f$

Published on 11 Mar 2024 - 13:48

List Question

What is the limit (as a distribution) of this Fourier series, similar to that of a Dirac Delta?

In a fourier series if $a_0$ is equal to 0 is $a_n$ also equal to 0?

Jacobi-Anger expansion of Fourier series

Finding $MSE$ of optimal estimator

Why do we have the following equality $\sigma(z)=\sum_{i=1}^n\lambda_if(w_i)e^{w_iz}$

Fourier series expansion of a phase shifted quasi-square wave

Fourier series of Fourier series coefficients for discrete time Fourier series

Does Fourier series of a function with period (2L) remains the same regardless of the specific range within that period in which function is defined?

How do I show that the synthesis equation of the Fourier Transform equals the original function?

Any generalizations of ${}_2F_1\left(\genfrac{}{}{0pt}{0}{a,-a}{{1}/{2}};\sin^2x\right)=\cos(2ax)$?

Prove that if $\{a_{k}\}$ is a sequence of real numbers such that $\sum_{k=1}^{\infty} \frac{|a_{k}|}{k} = \infty$,

240 and 504 showing up in the sphere spectrum

No Riemann-integrable function has the harmonic series has Fourier coefficients

Determine $a$ such that $y''(t)+ay(t)=y(t+\pi)$ has a non-trivial solution solution with period $2\pi$, then obtain the solutions

Why $\sum|n^ka_n|<\infty$ implies $f \in C^k$ where $a_n$ is the $n-th$ Fourier coefficient of $f$

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