EigenproblemEquationSystem
The EigenproblemEquationSystem is responsible for assembling the operators that will solve the eigenproblem with strong form
A u = \lambda M u,
where is the stiffness matrix assembled from the problem kernels, is a mass matrix constructed by the eigensolver, and represents an eigenvalue. EigenproblemEquationSystem has methods to build the right-hand side mass kernel, the left-hand side bilinear form and kernels and apply Dirichlet boundary conditions.
The resulting solution in the form of a vector of eigenvalues can be exported using the MFEMEigenvaluesPostprocessor