caa a22 4500 378913735 CHVBK 20180305123548.0 cr unu---uuuuu 161128e20040401xx s 000 0 eng 10.1515/156939804323089316 doi (NATIONALLICENCE)gruyter-10.1515/156939804323089316 Kuznetsov Yu. A. Department of Mathematics, University of Houston, Houston, TX 77204-3476, USA, Institute of Numerical Mathematics, Russian Academy of Sciences, Moscow GSP-1, 119991, Russia Efficient preconditioner for mixed finite element methods on nonmatching meshes [Elektronische Daten] [Yu. A. Kuznetsov] The hybridization technique is applied to replace the macro-hybrid mixed finite element problem for the diffusion equation on nonmatching meshes by the equivalent cell-based formulation. The underlying algebraic system is condensed by eliminating the degrees of freedom, which represent the interface flux and cell pressure variables, to the system containing the Lagrange multipliers variables. A block diagonal preconditioner is proposed and investigated for the condensed system with a saddle point matrix. Copyright 2004, Walter de Gruyter Russian Journal of Numerical Analysis and Mathematical Modelling Walter de Gruyter 19/2(2004-04-01), 163-172 0927-6467 19:2<163 2004 19 rnam https://doi.org/10.1515/156939804323089316 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/156939804323089316 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kuznetsov Yu. A. Department of Mathematics, University of Houston, Houston, TX 77204-3476, USA, Institute of Numerical Mathematics, Russian Academy of Sciences, Moscow GSP-1, 119991, Russia NATIONALLICENCE 773 0- Russian Journal of Numerical Analysis and Mathematical Modelling Walter de Gruyter 19/2(2004-04-01), 163-172 0927-6467 19:2<163 2004 19 rnam CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter