Block preconditioner with velocity-pressure Schur approximation yields mesh-independent GMRES convergence for SBM-Stokes via field-of-values analysis showing non-symmetric terms are small perturbations on fine meshes.
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Block Preconditioning for Shifted Boundary Method Discretisations of the Stokes Problem
Block preconditioner with velocity-pressure Schur approximation yields mesh-independent GMRES convergence for SBM-Stokes via field-of-values analysis showing non-symmetric terms are small perturbations on fine meshes.