. . . . "or" . "Laplace operator" . "2D Laplace operator" . "Laplacian operator" . "Laplace operator#Three dimensions" . "Laplacian" . . . . "Laplace operator#Vector Laplacian" . . "Laplace operator" . . "Laplace-Beltrami operator" . "harmonic" . . . . . . "3D Laplace operator" . . . . . . "Laplace_operator" . . "Laplace" . . "Laplacian differential operator" . . "scalar Laplacian" . . "Laplacian eigenfunctions" . "Laplace operator#Coordinate expressions" . . . .