Nikishin A A

Publications in Math-Net.Ru

1. Factorized-sparse-approximate-inverse preconditionings of linear systems with unsymmetric matrices
   
   Zap. Nauchn. Sem. POMI, 284 (2002),  18–35
2. An automatic scheḿe for updafing the block size in the block conjugate gradient method for solving linear systems
   
   Zap. Nauchn. Sem. POMI, 268 (2000),  159–175
3. Factorized sparse approximate inverse preconditionings III. Iterative construction of preconditioners.
   
   Zap. Nauchn. Sem. POMI, 248 (1998),  17–48