Approximation of a nonlinear elliptic problem arising in a non-newtonian fluid flow model in glaciology
ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 37 (2003) no. 1, pp. 175-186.

The main goal of this article is to establish a priori and a posteriori error estimates for the numerical approximation of some non linear elliptic problems arising in glaciology. The stationary motion of a glacier is given by a non-newtonian fluid flow model which becomes, in a first two-dimensional approximation, the so-called infinite parallel sided slab model. The approximation of this model is made by a finite element method with piecewise polynomial functions of degree 1. Numerical results show that the theoretical results we have obtained are almost optimal.

DOI : https://doi.org/10.1051/m2an:2003012
Classification : 65N15,  76A05
Mots clés : finite element method, a priori error estimates, a posteriori error estimates, non-newtonian fluids, infinite parallel sided slab model in glaciology
@article{M2AN_2003__37_1_175_0,
author = {Glowinski, Roland and Rappaz, Jacques},
title = {Approximation of a nonlinear elliptic problem arising in a non-newtonian fluid flow model in glaciology},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique},
pages = {175--186},
publisher = {EDP-Sciences},
volume = {37},
number = {1},
year = {2003},
doi = {10.1051/m2an:2003012},
zbl = {1046.76002},
mrnumber = {1972657},
language = {en},
url = {www.numdam.org/item/M2AN_2003__37_1_175_0/}
}
Glowinski, Roland; Rappaz, Jacques. Approximation of a nonlinear elliptic problem arising in a non-newtonian fluid flow model in glaciology. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 37 (2003) no. 1, pp. 175-186. doi : 10.1051/m2an:2003012. http://www.numdam.org/item/M2AN_2003__37_1_175_0/

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