1. On the Eigenvalue Distribution of Relaxed Incomplete Factorization Methods and the Rate of Convergence of Conjugate Gradient Methods;Axelsson,1989
2. Robust vectorizable preconditioners for three-dimensional elliptic difference equations with anisotropy;Axelsson,1987
3. Upper eigenvalue bounds for pencils of matrices;Beauwens;Linear Algebra Appl.,1984
4. On Axelsson's perturbations;Beauwens;Linear Algebra Appl.,1985
5. S/P images of upper triangular M-matrices;Beauwens;Numer. Linear Algebra Appl.,1994