Mm. Martins et Dj. Evans, THE BLOCK SUCCESSIVE RELAXATION - ADDITIVE ITERATIVE METHOD FOR LEAST-SQUARES PROBLEMS, International journal of computer mathematics, 62(1-2), 1996, pp. 89-99
In this paper, a Block Successive Relaxation Additive Iterative method
is considered for 2 cyclic block matrices derived from least squares
problems. The convergence conditions and the optimum block relaxation
parameter for the method are derived.