A priori error estimates for optimal control problems with pointwise constraints on the gradient of the state

We analyze a finite element approximation of an elliptic optimal control problem with pointwise bounds on the gradient of the state variable. We derive convergence rates if the control space is discretized implicitly by the state equation. In contrast to prior work we obtain these results directly f...

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Bibliographic Details
Main Authors: Ortner, Christoph (Author) , Wollner, Winnifried (Author)
Format: Article (Journal)
Language:English
Published: 18 February 2011
In: Numerische Mathematik
Year: 2011, Volume: 118, Issue: 3, Pages: 587-600
ISSN:0945-3245
DOI:10.1007/s00211-011-0360-9
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s00211-011-0360-9
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Author Notes:C. Ortner, W. Wollner
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Summary:We analyze a finite element approximation of an elliptic optimal control problem with pointwise bounds on the gradient of the state variable. We derive convergence rates if the control space is discretized implicitly by the state equation. In contrast to prior work we obtain these results directly from classical results for the W1,∞-error of the finite element projection, without using adjoint information. If the control space is discretized directly, we first prove a regularity result for the optimal control to control the approximation error, based on which we then obtain analogous convergence rates.
Item Description:Gesehen am 13.10.2022
Physical Description:Online Resource
ISSN:0945-3245
DOI:10.1007/s00211-011-0360-9