Two block preconditioners for a class of double saddle point linear systems
Fariba Bakrani Balani, Masoud Hajarian, Luca Bergamaschi
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.
Topics & Concepts
Saddle pointMathematicsLinear systemEigenvalues and eigenvectorsBlock (permutation group theory)Class (philosophy)SaddleApplied mathematicsFocus (optics)PreconditionerMathematical analysisMathematical optimizationCombinatoricsGeometryComputer sciencePhysicsQuantum mechanicsArtificial intelligenceOpticsMatrix Theory and AlgorithmsElectromagnetic Scattering and AnalysisAdvanced Numerical Methods in Computational Mathematics