We consider an initial and Dirichlet boundary value problem for a fourth-order linear stochastic parabolic equation, in one space dimension, forced by an additive space-time white noise. Discretizing the space-time white noise a modelling error is introduced and a regularized fourth-order linear stochastic parabolic problem is obtained. Fully-discrete approximations to the solution of the regularized problem are constructed by using, for discretization in space, a Galerkin finite element method based on C0 or C1 piecewise polynomials, and, for time-stepping, the Backward Euler method. We derive strong a priori estimates for the modelling error and for the approximation error to the solution of the regularized problem.
Mots clés : finite element method, space-time white noise, backward Euler time-stepping, fully-discrete approximations, a priori error estimates
@article{M2AN_2010__44_2_289_0, author = {Kossioris, Georgios T. and Zouraris, Georgios E.}, title = {Fully-discrete finite element approximations for a fourth-order linear stochastic parabolic equation with additive space-time white noise}, journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique}, pages = {289--322}, publisher = {EDP-Sciences}, volume = {44}, number = {2}, year = {2010}, doi = {10.1051/m2an/2010003}, mrnumber = {2655951}, zbl = {1189.65018}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an/2010003/} }
TY - JOUR AU - Kossioris, Georgios T. AU - Zouraris, Georgios E. TI - Fully-discrete finite element approximations for a fourth-order linear stochastic parabolic equation with additive space-time white noise JO - ESAIM: Modélisation mathématique et analyse numérique PY - 2010 SP - 289 EP - 322 VL - 44 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2010003/ DO - 10.1051/m2an/2010003 LA - en ID - M2AN_2010__44_2_289_0 ER -
%0 Journal Article %A Kossioris, Georgios T. %A Zouraris, Georgios E. %T Fully-discrete finite element approximations for a fourth-order linear stochastic parabolic equation with additive space-time white noise %J ESAIM: Modélisation mathématique et analyse numérique %D 2010 %P 289-322 %V 44 %N 2 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2010003/ %R 10.1051/m2an/2010003 %G en %F M2AN_2010__44_2_289_0
Kossioris, Georgios T.; Zouraris, Georgios E. Fully-discrete finite element approximations for a fourth-order linear stochastic parabolic equation with additive space-time white noise. ESAIM: Modélisation mathématique et analyse numérique, Tome 44 (2010) no. 2, pp. 289-322. doi : 10.1051/m2an/2010003. http://www.numdam.org/articles/10.1051/m2an/2010003/
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