A wavelet variation of the frequency decomposition multigrid method of Hackbusch is presented. The perfect reconstruction property of the wavelet system enable us to perform the convergence analysis of the frequency decomposition method. Some applications of this method are also presented.
Raymond O. Wells,
"Wavelet frequency decomposition method", Proc. SPIE 2242, Wavelet Applications, (15 March 1994); doi: 10.1117/12.170032; https://doi.org/10.1117/12.170032