Resumen de Semi-convergence analysis of the inexact Uzawa method for singular saddle point problems

Jian-Lei Li, Ting Zhu Huang

• Recently, various Uzawa methods were proposed based on different matrix splitting for solving nonsingular saddle point problems, and the necessary and sufficient condition of the convergence for those Uzawa methods were derived. Motivated by their results, in this paper we give the semi-convergence analysis of the inexact Uzawa method which is applied to solve singular saddle point problems under certain conditions.