Efficient computation of the 2D periodic Green's function using the Ewald method


An efficient computation of the periodic Helmholtz Green’s function for a 2D array of point sources using the Ewald method is presented. Limitations on the numerical accuracy when using the ‘‘optimum’’ E parameter (which gives optimum asymptotic convergence) at high frequency are discussed. A ‘‘best’’ E parameter is then derived to overcome these… (More)
DOI: 10.1016/j.jcp.2006.06.050


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