Variational discretization of Lavrentiev-regularized state constrained elliptic optimal control problems

Authors:
M. Hinze;C. Meyer
Affiliations:
Mathematical Department, University Hamburg, Hamburg, Germany 20146;Weierstrass Institute for Applied Analysis and Stochastics, Berlin, Germany 10117
Venue:
Computational Optimization and Applications
Year:
2010

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Abstract

In the present work, we apply a variational discretization proposed by the first author in (Comput. Optim. Appl. 30:45---61, 2005) to Lavrentiev-regularized state constrained elliptic control problems. We extend the results of (Comput. Optim. Appl. 33:187---208, 2006) and prove weak convergence of the adjoint states and multipliers of the regularized problems to their counterparts of the original problem. Further, we prove error estimates for finite element discretizations of the regularized problem and investigate the overall error imposed by the finite element discretization of the regularized problem compared to the continuous solution of the original problem. Finally we present numerical results which confirm our analytical findings.