Author

Michał Wichrowski

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Preprint Sep 2026

A Multigrid Method for CutFEM and its Convergence

A convergence theory for geometric multigrid with vertex-patch smoothers applied to cut finite element discretizations of the Poisson problem is developed and two-level convergence bounds uniform in the mesh size and the cut geometry, and W-cycle bounds under an additional smallness assumption on the two-level rate are...

Michał Wichrowski · 3 citations