An Inexact Uzawa-Type Iterative Method For Solving Saddle Point Problems
Xiaoliang Cheng, Jun Zou · International Journal of Computer Mathematics · 2003
An inexact Uzawa-type iterative algorithm is proposed for solving saddle point problems arising from mixed finite element methods or Lagrange multiplier methods for some PDEs. The convergence rate is given in terms of the rates of the two basic iterations and it is shown that the algorithm always converges as long as the two basic iterations converge.