An optimal iterative solver for symmetric indefinite systems stemming from mixed approximation. (English) Zbl 1365.65085
MSC:
65F10 | Iterative numerical methods for linear systems |
65N15 | Error bounds for boundary value problems involving PDEs |
65N22 | Numerical solution of discretized equations for boundary value problems involving PDEs |
65Y15 | Packaged methods for numerical algorithms |
76M10 | Finite element methods applied to problems in fluid mechanics |