Abstract : A new mixed finite element method on three-dimensional general hexahedral meshes for second order elliptic problems is proposed. This finite element is composite and is shown to have optimal convergence properties.
Amel Sboui, Jérôme Jaffré, Jean E. Roberts. A Composite Mixed Finite Elements for General Hexahedral Grids. [Research Report] RR-6300, INRIA. 2007, pp.27. ⟨inria-00173453v2⟩