Preconditioning techniques based on the Birkho {von ...
Birkho von Neumann decomposition for matrices with positive and negative entries where the sum of the absolute values of the entries in any given row or column is one. This generalization could be of interest in other areas. Then, we give experimental results (Section 4) with nonnegative and also arbitrary matrices, and then conclude the paper. 2 Background and de nitions Here we de ne ...