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Dual-weighted goal-oriented adaptive finite elements for optimal control of elliptic variational inequalities

Published online by Cambridge University Press:  27 March 2014

M. Hintermüller
Affiliation:
Department of Mathematics, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany. hint@math.hu-berlin.de; loebhard@math.hu-berlin.de
R.H.W. Hoppe
Affiliation:
Department of Mathematics, University of Houston, Houston, TX 77204-3008, USA; rohop@math.uh.edu Institute of Mathematics, University of Augsburg, Universitätsstraße 14, 86152 Augsburg, Germany; hoppe@math.uni-augsburg.de
C. Löbhard
Affiliation:
Department of Mathematics, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany. hint@math.hu-berlin.de; loebhard@math.hu-berlin.de
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Abstract

A dual-weighted residual approach for goal-oriented adaptive finite elements for a class of optimal control problems for elliptic variational inequalities is studied. The development is based on the concept of C-stationarity. The overall error representation depends on primal residuals weighted by approximate dual quantities and vice versa as well as various complementarity mismatch errors. Also, a priori bounds for C-stationary points and associated multipliers are derived. Details on the numerical realization of the adaptive concept are provided and a report on numerical tests including the critical cases of biactivity are presented.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2014

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