Geodesic
Error estimates for the finite element approximation of a semilinear elliptic control problem with state constraints and finite dimensional control space
ESAIM: Mathematical Modelling and Numerical Analysis , Tome 44 (2010) no. 1, pp. 167-188

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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.

DOI : 10.1051/m2an/2009045
Classification : 49J20, 35B37
Keywords: finite element approximation, optimal control problem, finitely many pointwise state constraints 
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     author = {Merino, Pedro and Tr\"oltzsch, Fredi and Vexler, Boris},
     title = {Error estimates for the finite element approximation of a semilinear elliptic control problem with state constraints and finite dimensional control space},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {167--188},
     publisher = {EDP-Sciences},
     volume = {44},
     number = {1},
     year = {2010},
     doi = {10.1051/m2an/2009045},
     mrnumber = {2647757},
     zbl = {1191.65076},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/m2an/2009045/}
}
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Merino, Pedro; Tröltzsch, Fredi; Vexler, Boris. Error estimates for the finite element approximation of a semilinear elliptic control problem with state constraints and finite dimensional control space. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 44 (2010) no. 1, pp. 167-188. doi: 10.1051/m2an/2009045

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