The pseudospectral method : Comparisons with finite differences for the elastic wave equation

@inproceedings{Fornberg2001ThePM,
  title={The pseudospectral method : Comparisons with finite differences for the elastic wave equation},
  author={Bengt Fornberg},
  year={2001}
}
The pseudospectral (or Fourier) method has been used recently by several investigators for forward seismic modeling. The method is introduced here in two different ways: as a limit of finite differences of increasing orders, and by trigonometric interpolation. An argument based on spectral analysis of a model equation shows that the pseudospectral method (for the accuracies and integration times typical of forward elastic seismic modeling) may require, in each space dimension, as little as a… CONTINUE READING

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