2 papers
math.NA2026
Matrix-Free Multigrid with Algebraically Consistent Coarsening on Adaptive Octrees
Mengdi Wang, Yuchen Sun, Bo Zhu
We present a matrix-free GPU multigrid preconditioner with algebraically consistent coarsening for solving Poisson equations on adaptive octree grids with irregular domains. Within…
cs.GR2024
An Interface Tracking Method with Triangle Edge Cuts
Mengdi Wang, Matthew Cong, Bo Zhu
This paper introduces a volume-conserving interface tracking algorithm on unstructured triangle meshes. We propose to discretize the interface via triangle edge cuts which represen…