A hierarchical A posteriori error estimator. Its application to mixed finite elements [French]

摘要

We propose a generalisation of the hierarchical a posteriori error estimator of Bank-Weiser to mixed formulations, in the cases of conforming and non conforming approximations, with or without numerical integration. We present as examples of application: the Dirichlet problem for the Laplace operator, in mixed dual formulation, with and without numerical integration. [References: 16]