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A Method to Compute Periodic Sums
In a number of problems in computational physics, a finite sum of kernel functions centered at N particle locations located in a box in three dimensions must be extended by imposing periodic boundary conditions on box ...
Hierarchical O(N) Computation of Small-Angle Scattering Profiles and their Associated Derivatives
Fast algorithms for Debye summation, which arises in computations performed in crystallography, small/wide-angle X-ray scattering (SAXS/WAXS) and small-angle neutron scattering (SANS), were recently presented in Gumerov ...