Approximation of Multidimensional Stable Densities

Multivariate stable densities do not generally have explicit formula, but they can be specified indirectly by means of a spectral measure. Our main result gives an approximation that is used for numerical computation of these densities. We construct a discrete spectral measure, with explicit formulas for the number, location, and magnitudes of the atoms, that yields a stable density uniformly close to the original one. Sample graphs of two dimensional stable densities with dependence are given.