The aim of this paper is to give a simple, introductory presentation of the extension of the Virtual Element Method to the discretization of H(div)-conforming vector fields (or, more generally, of (n - 1) - Cochains). As we shall see, the methods presented here can be seen as extensions of the so-called BDM family to deal with more general element geometries (such as polygons with an almost arbitrary geometry). For the sake of simplicity, we limit ourselves to the 2-dimensional case, with the aim of making the basic philosophy clear. However, we consider an arbitrary degree of accuracy k (the Virtual Element analogue of dealing with polynomials of arbitrary order in the Finite Element Framework).
@article{M2AN_2014__48_4_1227_0, author = {Brezzi, F. and Falk, Richard S. and Donatella Marini, L.}, title = {Basic principles of mixed Virtual Element Methods}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique}, volume = {48}, year = {2014}, pages = {1227-1240}, doi = {10.1051/m2an/2013138}, mrnumber = {3264352}, zbl = {1299.76130}, language = {en}, url = {http://dml.mathdoc.fr/item/M2AN_2014__48_4_1227_0} }
Brezzi, F.; Falk, Richard S.; Donatella Marini, L. Basic principles of mixed Virtual Element Methods. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 48 (2014) pp. 1227-1240. doi : 10.1051/m2an/2013138. http://gdmltest.u-ga.fr/item/M2AN_2014__48_4_1227_0/
[1] Equivalent projectors for virtual element methods, Comput. Math. Appl. 66 (2013) 376-391. | MR 3073346
, , , and ,[2] Approximation by quadrilateral finite elements. Math. Comput. 71 (2002) 909-922. | MR 1898739 | Zbl 0993.65125
, and ,[3] Quadrilateral H(div) finite elements. SIAM J. Numer. Anal. 42 (2005) 2429-2451. | MR 2139400 | Zbl 1086.65105
, and ,[4] The basic principles of Virtual Elements Methods. Math. Models Methods Appl. Sci. 23 (2013) 199-214. | MR 2997471 | Zbl pre06144424
, , , , and ,[5] Virtual Elements for linear elasticity problems. SIAM J. Num. Anal. 51 (2013) 794-812. | MR 3033033 | Zbl 1268.74010
, and ,[6] Mixed Virtual Element Methods in three dimensions. In preparation.
, , and ,[7] Convergence analysis of the high-order mimetic finite difference method. Numer. Math. 113 (2009) 325-356. | MR 2534128 | Zbl 1183.65132
, and ,[8] Arbitrary-Order Nodal Mimetic Discretizations of Elliptic Problems on Polygonal Meshes. SIAM J. Numer. Anal. 49 (2011) 1737-1760. | MR 2837482 | Zbl 1242.65215
, and ,[9] A higher-order formulation of the Mimetic Finite Difference Method SIAM J. Sci. Comput. 31 (2008) 732-760. | MR 2460797 | Zbl 1185.65201
and ,[10] Principle of mimetic discretizations of differential operators, Compatible discretizations. In vol. 142 of Proc. of IMA hot topics workshop on compatible discretizations. Edited by D. Arnold, P. Bochev, R. Lehoucq, R. Nicolaides and M. Shashkov. Springer-Verlag (2006). | MR 2249347 | Zbl 1110.65103
and ,[11] Mixed Finite Element Methods and Applications. Springer-Verlag, New York (2013). | MR 3097958 | Zbl 1277.65092
, and ,[12] The mathematical theory of finite element methods. In vol. 15 of Texts Appl. Math. Springer-Verlag, New York (2008). | MR 2373954 | Zbl 1135.65042
and ,[13] Mimetic finite differences for elliptic problems. ESAIM: M2AN 43 (2009) 277-295. | Numdam | MR 2512497 | Zbl 1177.65164
, and ,[14] Mixed and Hybrid Finite Element Methods. Springer-Verlag, New York (1991). | MR 1115205 | Zbl 0788.73002
and ,[15] Convergence of mimetic finite difference method for diffusion problems on polyhedral meshes. SIAM J. Num. Anal. 43 (2005) 1872-1896. | MR 2192322 | Zbl 1108.65102
, and ,[16] A new discretization methodology for diffusion problems on generalized polyhedral meshes. Comput. Meth. Appl. Mech. Engrg. 196 (2007) 3682-3692. | MR 2339994 | Zbl 1173.76370
, , and ,[17] A family of mimetic finite difference methods on polygonal and polyhedral meshes. Math. Models Methods Appl. Sci. 15 (2005) 533-1553. | MR 2168945 | Zbl 1083.65099
, and ,[18] Virtual elements for plate bending problems. Comput. Meth. Appl. Mech. Engrg. 253 (2013) 155-462. | MR 3002804 | Zbl 1297.74049
and ,[19] Convergence analysis of the mimetic finite difference method for elliptic problems. SIAM J. Numer. Anal. 47 (2009) 2612-2637. | MR 2525613 | Zbl 1204.65128
, and ,[20] The Finite Element Method for Elliptic Problems. North-Holland (1978). | MR 520174 | Zbl 0511.65078
,[21] Mixed finite element methods for second order elliptic problems. Math. Appl. Comput. 1 (1982) 91-103. | MR 667620 | Zbl 0482.65057
and ,[22] A unified approach to mimetic finite difference, hybrid finite volume and mixed finite volume methods. Math. Models Methods Appl. Sci. (M3AS) 20 (2010) 265-295. | MR 2649153 | Zbl 1191.65142
, , and ,[23] Supernatural QUAD4: A template formulation Comput. Methods Appl. Mech. Engrg. 195 (2006) 5316-5342. | MR 2243313 | Zbl 1120.74049
,[24] The extended/generalized finite element method: An overview of the method and its applications Int, J. Numer. Meth. Engng. 84 (2010) 253-304. | MR 2732652 | Zbl 1202.74169
and ,[25] Phase-field based topology optimization with polygonal elements: a finite volume approach for the evolution equation. Struct. Multidiscip. Optim. (2012) 4632-7342. | MR 2969787 | Zbl 1274.74332
and ,[26] High-order mimetic finite difference method for diffusion problems on polygonal meshes. J. Comput. Phys. 227 (2008) 8841-8854. | MR 2459538 | Zbl 1152.65101
and ,[27] The orthogonal decomposition theorems for mimetic finite difference methods. SIAM J. Numer. Anal. 36 (1999) 788-818. | MR 1681037 | Zbl 0972.65077
and ,[28] New mixed finite element method on polygonal and polyhedral meshes. Russ. J. Numer. Anal. Math. Model. 18 (2003) 261-278. | MR 1997159 | Zbl 1048.65113
and ,[29] Higher order BEM-based FEM on polygonal meshes. SIAM J. Numer. Anal. 50 (2012) 2357-2378. | MR 3022222 | Zbl 1264.65196
and ,[30] Conforming polygonal finite elements. Int. J. Numer. Meth. Engrg. 61 (2004) 2045-2066. | MR 2101599 | Zbl 1073.65563
and ,[31] Extended finite element method on polygonal and quadtree meshes. Comput. Methods Appl. Mech. Engrg. 197 (2007) 425-438. | MR 2362382 | Zbl 1169.74634
and ,[32] Honeycomb Wachspress finite elements for structural topology optimization. Struct. Multidiscip. Optim. 37 (2009) 569-583. | MR 2471018 | Zbl 1274.74452
, and ,[33] A rational Finite Element Basis. Academic Press, New York (1975). | MR 426460 | Zbl 0322.65001
,