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Results tagged with bessel-functions
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user 91908
3
votes
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answers
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Green's Function for a Kernel with Symmetric Fourier Transform $\nabla^2-x^2$
I am trying to find the inverse of the following kernel in 3 dimensions
$$
\nabla^2-x^2,
$$
where,
$$
x^2=\vec{x}.\vec{x}
$$
It seems quit simple and one would think there should already be solutions …
- 31