The Fourier transform of $ \begin{cases} 1 & |x|<1\\ 0 & else \end{cases} $ where $x \in \mathbb R^3$ is an elementary function?
93312
Fourier transform of the indicator of the unit ball
39080
What is the spectrum of $\hat x \hat p + \hat p \hat x$?
153271
Fourier transform is uniformly continuous
69913
Inverse Fourier transform of Gaussian
63453
A proof of the fact that the Fourier transform is not surjective from $\mathcal{L}^1(\mathbb{R})$ to $C_0( \mathbb{R})$
123934
a Fourier transform (sinc)
133851
How to arrive at $\int_{0}^{1} f^3(x) \, dx < (\int_{0}^{1} f(x) \, dx)^2$?
47788
RMS value of trapeziodal fourier series
4956
Connection between Fourier transform and Taylor series
76074
Fourier Series Representation $e^{ax}$
9477
Dft to evaluate Fourier coefficients
106841
Meaning of complex Fourier transformation function
107070
Fourier transform standard practice for physics
35982
A function and its Fourier transform cannot both be compactly supported
158971
Computing the Fourier series of $f(\theta)=(\pi-\theta)^2/4$ for $0\leq\theta\leq{2\pi}$
46620
Find the coefficients of the Fourier series that minimise the error.
80588
The Fourier transform of a "comb function" is a comb function?