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Showing 1 to 1 of 1 for “"Square root matrix"”.
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Fast algorithms for Brownian dynamics simulation with hydrodynamic interactions
… calculate Du for a given vector u and compute [square root]Dv for a normally distributed random vector v. For an arbitrary N-particle configuration, D is a 3N x 3N matrix and u, v are vectors of length 3N. Thus, classical algorithms require O(N^2) operations for computing Du and O(N^3) …