A fundamental solution G(x,y) to a linear differential operator L satisfying L_x G(x,y) = δ(x−y) with prescribed boundary conditions. Integral kernel solving Lu = f by u = ∫ G f.
A fundamental solution G(x,y) to a linear differential operator L satisfying L_x G(x,y) = δ(x−y) with prescribed boundary conditions. Integral kernel solving Lu = f by u = ∫ G f.