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Error estimates for the finite element approximation of a semilinear elliptic control problem with state constraints and finite dimensional control space

Published online by Cambridge University Press:  16 December 2009

Pedro Merino
Affiliation:
Department of Mathematics, EPN Quito, Ecuador.
Fredi Tröltzsch
Affiliation:
Institut für Mathematik, TU Berlin, Germany. troeltz@math.TU-Berlin.DE
Boris Vexler
Affiliation:
Institut für Mathematik, TU Berlin, Germany. troeltz@math.TU-Berlin.DE
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Abstract

The finite element approximation of optimal control problems for semilinear elliptic partial differential equation is considered, where the control belongs to a finite-dimensional set and state constraints are given in finitely many points of the domain. Under the standard linear independency condition on the active gradients and a strong second-order sufficient optimality condition, optimal error estimates are derived for locally optimal controls.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2009

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