Fast and accurate algorithms for the computation of spherically symmetric nonlocal diffusion operators on lattices #115
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This adds a new type of operator to the ApproxFun ecosystem: nonlocal Laplacians. Currently, 1D overrides for Fourier-like spaces are provided, but the algorithms work for any natural number
dof spatial dimensions.The algorithms are described in the pre-print http://arxiv.org/abs/1810.07131.