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math.NA2026
Block Preconditioning for Shifted Boundary Method Discretisations of the Stokes Problem
Michał Wichrowski, Ajay Ajith
The Shifted Boundary Method (SBM) sidesteps body-fitted meshing by shifting boundary conditions onto a surrogate boundary and correcting for the displacement through Taylor expansi…
math.NA2026
A Geometric Multigrid Preconditioner for Shifted Boundary Method
Michał Wichrowski, Ajay Ajith
The Shifted Boundary Method (SBM) trades some part of the burden of body-fitted meshing for increased algebraic complexity. While the resulting linear systems retain the standard $…