Convergence of multipoint flux approximations on quadrilateral grids

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Multipoint flux approximation methods for quadrilateral grids (2007, methodology): “1 Convergence The convergence property for the equation (7) has been discussed in several papers [10, 11, 12, 13, 14, 42, 43, 54, 55, 68, 69].”
Convergence of a symmetric MPFA method on quadrilateral grids (2007, methodology): “In this paper, we consider the MPFA method for quadrilateral grids in a reference space [1, 5, 23, 24] and its relationship to the mixed finite element (MFE) method [12].”
Mixed finite elements for solving 2‐D diffusion‐type equations (2010, background): “D quadrilaterals [Klausen and Winther, 2006a, 2006b], of MPFA on 2‐”
Coupling multipoint flux mixed finite element methodswith continuous Galerkin methods for poroelasticity (2013, methodology): “Keywords Poroelasticity · Geomechanics · Multipoint flux mixed finite element · Continuous Galerkin · Finite volume method”
MIXED FINITE ELEMENT METHODS: IMPLEMENTATION WITH ONE UNKNOWN PER ELEMENT, LOCAL FLUX EXPRESSIONS, POSITIVITY, POLYGONAL MESHES, AND RELATIONS TO OTHER METHODS (2013, result): “The last goal of the present paper is to, through the preceding developments, show the closeness of mixed finite element methods to various other discretization schemes, namely mimetic finite difference [43, 20, 40], hybrid finite volume [35], mixed finite volume [31], multi-point fluxapproximation ”