Hello, what kind of support is there for implementing the last stage of dual weighted residual (DWR) method (for local error estimation and mesh refinement) in deal.ii? i am talking about the computation of the upper bound itself; i already have the discrete solutions for the 1st order KKT equations.
I have been already directed to FeTools::extrapolate and FeTools::interpolation_difference, which should take care of the patchwise bi-quadratic interpolation required in the residual weights. Are these the right functions to use for the DWR? thank you! -- Mihai
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