Claudine C. Tazartes

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The frequency decomposition multigrid method was previously considered and rejected because it was not robust for problems with discontinuous coefficients. In this paper it is shown how to modify the method to obtain such robustness while retaining robustness for problems with anisotropic coefficients. Application of the method to a problem arising in(More)
We present a method of fitting arbitrary functions to linear combinations of Gaussians. In particular, we discuss an adaptation of Prony’s method, or separation of exponentials, which allows us to automatically select appropriate exponents for these Gaussians. We then apply this technique to the selection of dealiasing sets for pseudospectral electron(More)
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