M. Benzi, G. H. Golub, and J. Liesen, Numerical solution of saddle point problems, Acta Numerica, vol.14, pp.1-137, 2005.
DOI : 10.1017/S0962492904000212

M. Benzi and M. Tuma, A Sparse Approximate Inverse Preconditioner for Nonsymmetric Linear Systems, SIAM Journal on Scientific Computing, vol.19, issue.3, pp.968-994, 1998.
DOI : 10.1137/S1064827595294691

M. Benzi and M. Tuma, A comparative study of sparse approximate inverse preconditioners, Applied Numerical Mathematics, vol.30, issue.2-3, pp.305-340, 1999.
DOI : 10.1016/S0168-9274(98)00118-4

P. N. Brown and H. F. Walker, GMRES On (Nearly) Singular Systems, SIAM Journal on Matrix Analysis and Applications, vol.18, issue.1, pp.37-51, 1997.
DOI : 10.1137/S0895479894262339
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.49.8863

Z. Cao, A Note on Constraint Preconditioning for Nonsymmetric Indefinite Matrices, SIAM Journal on Matrix Analysis and Applications, vol.24, issue.1, pp.121-125, 2002.
DOI : 10.1137/S0895479801391424

Z. Cao, A class of constraint preconditioners for nonsymmetric saddle point matrices, Numerische Mathematik, vol.103, issue.1, pp.47-61, 2006.
DOI : 10.1007/s00211-006-0675-0

Z. Cao, Comparison of performance of iterative methods for singular and nonsingular saddle point linear systems arising from Navier???Stokes equations, Applied Mathematics and Computation, vol.174, issue.1, pp.630-642, 2006.
DOI : 10.1016/j.amc.2005.04.109

Z. Cao, Augmentation block preconditioners for saddle point-type matrices with singular (1,1) blocks, Numer, Linear Algebra Appl, 2008.

H. Elman, Preconditioning for the Steady-State Navier--Stokes Equations with Low Viscosity, SIAM Journal on Scientific Computing, vol.20, issue.4, pp.1299-1316, 1999.
DOI : 10.1137/S1064827596312547

J. M. Ford and E. E. Tyrtyshnikov, Combining Kronecker Product Approximation with Discrete Wavelet Transforms to Solve Dense, Function-Related Linear Systems, SIAM Journal on Scientific Computing, vol.25, issue.3, pp.961-981, 2003.
DOI : 10.1137/S1064827503421689
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.7.3886

G. H. Golub, C. Greif, and J. M. Varah, An Algebraic Analysis of a Block Diagonal Preconditioner for Saddle Point Systems, SIAM Journal on Matrix Analysis and Applications, vol.27, issue.3, pp.779-792, 2005.
DOI : 10.1137/04060679X

N. I. Gould, M. E. Hribar, and J. , On the Solution of Equality Constrained Quadratic Programming Problems Arising in Optimization, SIAM Journal on Scientific Computing, vol.23, issue.4, pp.1376-1395, 2001.
DOI : 10.1137/S1064827598345667

C. Greif and D. Schötzau, Preconditioners for saddle point linear systems with highly singular (1,1) blocks, Electronic Transactions on Numerical Analysis, pp.141-121, 2006.

M. Grote and T. Huckle, Parallel Preconditioning with Sparse Approximate Inverses, SIAM Journal on Scientific Computing, vol.18, issue.3, pp.838-853, 1997.
DOI : 10.1137/S1064827594276552
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.38.1183

C. Keller, N. I. Gould, and A. J. Wathen, Constraint Preconditioning for Indefinite Linear Systems, SIAM Journal on Matrix Analysis and Applications, vol.21, issue.4, pp.1300-1317, 2000.
DOI : 10.1137/S0895479899351805
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.27.4367

A. Klawonn, Block-Triangular Preconditioners for Saddle Point Problems with a Penalty Term, SIAM Journal on Scientific Computing, vol.19, issue.1, pp.172-184, 1998.
DOI : 10.1137/S1064827596303624

L. , Y. Kolotilina, and A. Yu-yeremin, Factorized sparse approximate inverse preconditionings, SIAM J. Matrix Anal. Appl, vol.14, pp.45-58, 1993.
DOI : 10.1137/0614004

A. N. Langville and W. J. Stewart, A Kronecker product approximate preconditioner for SANs, Numerical Linear Algebra with Applications, vol.11, issue.89, pp.723-752, 2004.
DOI : 10.1002/nla.344

J. Liesen and Z. Strakos, GMRES Convergence Analysis for a Convection-Diffusion Model Problem, SIAM Journal on Scientific Computing, vol.26, issue.6, pp.1989-2009, 2005.
DOI : 10.1137/S1064827503430746

G. Meurant, A Review on the Inverse of Symmetric Tridiagonal and Block Tridiagonal Matrices, SIAM Journal on Matrix Analysis and Applications, vol.13, issue.3, pp.707-728, 1992.
DOI : 10.1137/0613045

K. W. Morton, Numerical Solution of Convection-Diffusion Problems, 1996.

N. Pitsianis and C. F. Van-loan, Approximation with Kronecker products, in Linear Algebra for Large Scale and Real Time, Kluwer Academics, pp.293-314, 1993.

A. Quarteroni and A. Valli, Numerical Approximation of Partial Differential Equations, Comput. Math, vol.23, 1994.

M. Rozloznik and V. Simoncini, Krylov Subspace Methods for Saddle Point Problems with Indefinite Preconditioning, SIAM Journal on Matrix Analysis and Applications, vol.24, issue.2, pp.368-391, 2004.
DOI : 10.1137/S0895479800375540

Y. Saad and M. Schultz, GMRES: A Generalized Minimal Residual Algorithm for Solving Nonsymmetric Linear Systems, SIAM Journal on Scientific and Statistical Computing, vol.7, issue.3, pp.856-869, 1986.
DOI : 10.1137/0907058

Y. Saad, ILUT: A dual threshold incomplete LU factorization, Numerical Linear Algebra with Applications, vol.19, issue.4, pp.387-402, 1994.
DOI : 10.1002/nla.1680010405
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.2345

Y. Saad, ILUM: A Multi-Elimination ILU Preconditioner for General Sparse Matrices, SIAM Journal on Scientific Computing, vol.17, issue.4, pp.830-847, 1996.
DOI : 10.1137/0917054

E. De-sturler and J. Liesen, Block-Diagonal and Constraint Preconditioners for Nonsymmetric Indefinite Linear Systems. Part I: Theory, SIAM Journal on Scientific Computing, vol.26, issue.5, pp.1598-1619, 2005.
DOI : 10.1137/S1064827502411006

H. Xiang, Iterative methods and perturbation analysis of structured linear systems, School of Mathematical Sciences, 2006.