Items for "a posteriori error estimate"

On a direct approach to adaptive FE-discretisations for elliptic variational inequalities

The techniques to derive residual based error estimators for finite element discretisations of variational equations can be extended directly to variational inequalities by employing a suitable adaptation of Nitsche's idea (c.f...

Keywords: contact problem, obstacle problem, a posteriori error estimate, variational inequality, finite element method, Adaptivity