The goal of our paper is to introduce basis functions for the finite element discretization of a second order linear elliptic operator with rough or highly oscillating coefficients. The proposed basis functions are inspired by the classic idea of component mode synthesis and exploit an orthogonal decomposition of the trial subspace to minimize the energy. Numerical experiments illustrate the effectiveness of the proposed basis functions.
Mots clés : eigenvalues, modal analysis, multilevel, substructuring, domain decomposition, dimensional reduction, finite elements
@article{M2AN_2010__44_3_401_0, author = {Hetmaniuk, Ulrich L. and Lehoucq, Richard B.}, title = {A special finite element method based on component mode synthesis}, journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique}, pages = {401--420}, publisher = {EDP-Sciences}, volume = {44}, number = {3}, year = {2010}, doi = {10.1051/m2an/2010007}, mrnumber = {2666649}, zbl = {1190.65173}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an/2010007/} }
TY - JOUR AU - Hetmaniuk, Ulrich L. AU - Lehoucq, Richard B. TI - A special finite element method based on component mode synthesis JO - ESAIM: Modélisation mathématique et analyse numérique PY - 2010 SP - 401 EP - 420 VL - 44 IS - 3 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2010007/ DO - 10.1051/m2an/2010007 LA - en ID - M2AN_2010__44_3_401_0 ER -
%0 Journal Article %A Hetmaniuk, Ulrich L. %A Lehoucq, Richard B. %T A special finite element method based on component mode synthesis %J ESAIM: Modélisation mathématique et analyse numérique %D 2010 %P 401-420 %V 44 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2010007/ %R 10.1051/m2an/2010007 %G en %F M2AN_2010__44_3_401_0
Hetmaniuk, Ulrich L.; Lehoucq, Richard B. A special finite element method based on component mode synthesis. ESAIM: Modélisation mathématique et analyse numérique, Tome 44 (2010) no. 3, pp. 401-420. doi : 10.1051/m2an/2010007. http://www.numdam.org/articles/10.1051/m2an/2010007/
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