Convergence acceleration techniques in the iterative solution of integral equation problems

The authors present some techniques that, when applied judiciously, can speed up convergence rates considerably or make convergence possible in otherwise impossible cases in connection with the iterative solution of integral equation problems. Particular attention is given to automatic renumbering (matrix, method), extrapolation schemes, and a multilevel approach. It is noted that the combined effect of these techniques would speed up the iterative process further.<>