Gh. Golub et Aj. Wathen, AN ITERATION FOR INDEFINITE SYSTEMS AND ITS APPLICATION TO THE NAVIER-STOKES EQUATIONS, SIAM journal on scientific computing, 19(2), 1998, pp. 530-539
For large sparse systems of linear equations iterative solution techni
ques are attractive. In this paper we propose and examine the converge
nce of an iterative method for an important class of nonsymmetric and
indefinite coefficient matrices based on the use of an indefinite and
symmetric preconditioner. We apply our technique to the linearized Nav
ier-Stokes equations (the Oseen equations).