Hello all, I am trying to solve an nonlinear laplace problem with only dirichlet boundaries using dealii with distributed triangulation. I do have a solution vector locally_owned_sol and a newton_update. At the Dirichlet boundaries, I want to restrict the newton update to be zero and the boundary values will be taken in the locally_owned_sol. How can one achieved this in dealii. The first step is easy using the VectorTools::interpolate_boundary_values. I am worried about the second step how to construct it as well as initalize the newton_update with non_zero values at the Dirichlet boundaries.
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