Two different block preconditioners are introduced and studied for solving a class of double saddle point linear systems. We provide an eigenvalue analysis for the preconditioned matrices, with special focus on their inexact variants, and give some numerical experiments to illustrate the performance of the studied preconditioning techniques.
Two block preconditioners for a class of double saddle point linear systems
Bergamaschi, Luca
2023
Abstract
Two different block preconditioners are introduced and studied for solving a class of double saddle point linear systems. We provide an eigenvalue analysis for the preconditioned matrices, with special focus on their inexact variants, and give some numerical experiments to illustrate the performance of the studied preconditioning techniques.
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