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Items for "Adaptivity"

From User-adaptive to Context-adaptive Information Systems

This paper introduces context-adaptive information systems reflecting the current needs of the user. Context-adaptive information systems reflect more than classical user-adaptive systems where user and task characteristics are considered for adaptation...

Keywords: Context-adaptiveness, Situation-awareness, Location-based information systems, Adaptivity, Adaptability

03/2005 | i-com, Oldenbourg Wissenschaftsverlag

Duality-based adaptivity in the hp-finite element method

In this paper a duality-based a posteriori error analysis is developed for the conforming hp Galerkin finite element approximation of second-order elliptic problems...

Keywords: hp-finite element method, a posteriori error analysis, Adaptivity, error control, DWR method

06/2003 | Journal of Numerical Mathematics, Walter de Gruyter

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

04/2005 | Journal of Numerical Mathematics, Walter de Gruyter

On adaptive computational methods: global norms controlling local errors

In this note, we continue our studies on optimised mesh design for the Finite Element (FE) method using global norm estimates for local error control...

Keywords: finite element method, Adaptivity, a posteriori error bounds