Robust local problem error estimation for a singularly perturbed problem on anisotropic finite element meshes
Gerd Kunert (2010)
ESAIM: Mathematical Modelling and Numerical Analysis
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Singularly perturbed problems often yield solutions with strong directional features, with boundary layers. Such anisotropic solutions lend themselves to adapted, anisotropic discretizations. The quality of the corresponding numerical solution is a key issue in any computational simulation. To this end we present a new robust error estimator for a singularly perturbed reaction-diffusion problem. In contrast to conventional estimators, our proposal is suitable for finite element...