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Optimized Neumann-Neumann method for the Stokes-Darcy problem

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arxiv 2304.12728 v1 pith:EW3MHMQ7 submitted 2023-04-25 math.NA cs.NA

Marco Discacciati , Jake Robinson This is my paper · ORCID
classification math.NAcs.NA
keywords preconditionerproblemmethodneumann-neumannstokes-darcyconvergencedefinefrequency
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A novel preconditioner of Neumann-Neumann type for the Stokes-Darcy problem is studied, where optimal weights of the local subproblems that define the preconditioner are obtained by minimizing the convergence rate of the method in the frequency space. Numerical tests show that the preconditioner is robust with respect to both the mesh size and the values of the physical parameters of the problem.

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