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math.NA2026
An efficient coupled block preconditioner for the Marker-and-Cell discretization of the Stokes-Darcy equations
Zhen Chao, Tianwen Li
We consider the iterative solution of the large, sparse and nonsymmetric double saddle-point systems arising from the stationary Stokes-Darcy equations in two dimensions, discretiz…
math.NA2026
A Two-Grid Finite Element Method for the Nonlinear Poisson-Boltzmann Equation Based on a Solution Decomposition
Zhen Chao, Jingchun Chen, Cong He
The nonlinear Poisson--Boltzmann equation (PBE) is a widely used implicit-solvent model for the electrostatics of biomolecules in ionic solvent. Its numerical solution is complicat…