Improved Black Box Multigrid for Definite and Indefiniteproblemsyair Shapira

A two-level analysis method for certain separable problems is introduced. Unlike standard two-level analysis methods, based on Fourier analysis, it is based on spectral analysis, hence applicable to non-normal problems and to certain problems with variable coeecients. It motivates the deenition of improved versions of Black Box Multigrid for diiusion… CONTINUE READING