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math.NA2021
Lightning Stokes solver
Pablo D. Brubeck, Lloyd N. Trefethen
Gopal and Trefethen recently introduced "lightning solvers" for the 2D Laplace and Helmholtz equations, based on rational functions with poles exponentially clustered near singular…
math.NA2021★ 14 cited
A scalable and robust vertex-star relaxation for high-order FEM
Pablo D. Brubeck, Patrick E. Farrell
Pavarino proved that the additive Schwarz method with vertex patches and a low-order coarse space gives a -robust solver for symmetric and coercive problems. However, for very h…