A posteriori error estimates for non conforming approximation of quasi Stokes problem

International audienceWe derive and analyze an a posteriori error estimator for nonconforming finite element approximation for the quasi-Stokes problem, which is based on the solution of local problem on stars with low cost computation, this indicator is equivalent to the energy error norm up to data oscillation, neither saturation assumption nor comparison with residual estimator are made

A Posteriori Error Estimates on Stars for Convection Diffusion Problem

In this paper, a new a posteriori error estimator for nonconforming convection diffusion approximation problem, which relies on the small discrete problems solution in stars, has been established. It is equivalent to the energy error up to data oscillation without any saturation assumption nor comparison with residual estimato

A general approach to the construction of nonconforming finite elements on convex polytopes

ACLInternational audienc

Star-Based a posteriori error estimates for convection diffusion problems

International audienc