schur.hpp File Reference

#include <expected>
#include <span>
#include "mfem/linalg/sparsemat.hpp"
#include "serif/solver/preconditioner/backend/mfem/inverse.hpp"

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Namespaces
namespace	serif
namespace	serif::solver
namespace	serif::solver::preconditioner
namespace	serif::solver::preconditioner::backend
namespace	serif::solver::preconditioner::backend::mfem

Functions
std::expected< std::shared_ptr< const ::mfem::SparseMatrix >, Failure >	serif::solver::preconditioner::backend::mfem::try_gravity_schur (const ::mfem::SparseMatrix &divergence, std::span< const double > mapped_mass_diagonal)
	Form B diag(M)⁻¹ Bᵀ without changing the frozen computational divergence or an earlier Schur matrix.