The convolution, or folding, theorem related to Fourier transforms is applied to the evaluation of interaction integrals of certain extended bodies for the specific purpose of nuclear applications The integrals give analytical results for a class of functions when chosen from among uniform sharp and leptodermous spheres, delta-points, Yukawa, and Coulomb shapes. Such shapes are convenient to use as models for source density and point-point interaction.
KEHNEMİ, ŞULE and AKYÜZ, R. ÖMÜR (2003) "Interaction Integrals of Extended Bodies and Convolution/Folding Operation," Turkish Journal of Physics: Vol. 27: No. 2, Article 2. Available at: https://journals.tubitak.gov.tr/physics/vol27/iss2/2