In this paper we introduce and analyze new mixed finite volume methods for second order elliptic problems which are based on $H\left(\mathrm{div}\right)$-conforming approximations for the vector variable and discontinuous approximations for the scalar variable. The discretization is fulfilled by combining the ideas of the traditional finite volume box method and the local discontinuous Galerkin method. We propose two different types of methods, called Methods I and II, and show that they have distinct advantages over the mixed methods used previously. In particular, a clever elimination of the vector variable leads to a primal formulation for the scalar variable which closely resembles discontinuous finite element methods. We establish error estimates for these methods that are optimal for the scalar variable in both methods and for the vector variable in Method II.

Keywords: mixed method, finite volume method, discontinuous finite element method, conservative method

@article{M2AN_2006__40_1_123_0, author = {Kim, Kwang Y.}, title = {New mixed finite volume methods for second order eliptic problems}, journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique}, pages = {123--147}, publisher = {EDP-Sciences}, volume = {40}, number = {1}, year = {2006}, doi = {10.1051/m2an:2006001}, mrnumber = {2223507}, zbl = {1097.65116}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an:2006001/} }

TY - JOUR AU - Kim, Kwang Y. TI - New mixed finite volume methods for second order eliptic problems JO - ESAIM: Modélisation mathématique et analyse numérique PY - 2006 SP - 123 EP - 147 VL - 40 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an:2006001/ DO - 10.1051/m2an:2006001 LA - en ID - M2AN_2006__40_1_123_0 ER -

%0 Journal Article %A Kim, Kwang Y. %T New mixed finite volume methods for second order eliptic problems %J ESAIM: Modélisation mathématique et analyse numérique %D 2006 %P 123-147 %V 40 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an:2006001/ %R 10.1051/m2an:2006001 %G en %F M2AN_2006__40_1_123_0

Kim, Kwang Y. New mixed finite volume methods for second order eliptic problems. ESAIM: Modélisation mathématique et analyse numérique, Volume 40 (2006) no. 1, pp. 123-147. doi : 10.1051/m2an:2006001. http://www.numdam.org/articles/10.1051/m2an:2006001/

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