Multigrid Methods for Process Simulation

It was about 1985 when both of the authors started their work using multigrid methods for process simulation problems. There are the three "classical" ones, from our point of view: the so-called "1984 Guide" [12J by Brandt, the "Multi-Grid Methods and Applications" [49J by Hackbusch and the so-called "Fundamentals" [132J by Stiiben and Trottenberg.