The authors derive and numerically verify parameter-robust preconditioners for statically condensed HDG systems applied to the time-dependent Stokes equations.
Analysis of injection operators in geometric multigrid solvers for HDG methods.SIAM Journal on Numerical Analysis, 60(4):2293–2317
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Robust preconditioning for an HDG discretization of the time-dependent Stokes equations
The authors derive and numerically verify parameter-robust preconditioners for statically condensed HDG systems applied to the time-dependent Stokes equations.