Green's functions

Описание к видео Green's functions

What is a singularity? Here: Dirac delta function (distribution). Green's function of Laplace equation in spherical symmetry. Green's function of wave equation, spherical waves. Expansion in eigenfunctions of differential operator. Wick rotation. Brief comments on quantum scattering theory: Lippmann-Schwinger equation, Feynman diagrams, string amplitude.

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