FESpaceHierarchies

FESpaceHierarchies syntax is used to create MFEM finite element space hierarchies from existing MFEM finite element spaces. Each hierarchy defines a sequence of h- and/or p-refined levels that can be used by MFEM variables and multigrid solvers.

The available hierarchy type is MFEMFESpaceHierarchy. Hierarchy sub-blocks are added to MFEM problems by AddMFEMFESpaceHierarchyAction.