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- W2050874588 abstract "An integral state-constrained optimal control problem governed by an elliptic partial differential equation and its finite element approximation are considered. The finite element approximation is constructed on multimeshes. An $L^2$-norm a priori error estimate of the finite element approximation is obtained. Further, some superconvergence results are proved. Based on these superconvergence results, almost optimal $L^infty$-norm error estimates are derived. Some recovery algorithms are then proposed to produce a posteriori error estimators of gradient type. To solve the finite element system, a simple and yet efficient iterative gradient projection algorithm is proposed and its convergence rate is proved. Some numerical examples are performed to confirm theoretical analysis." @default.
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- W2050874588 date "2010-01-01" @default.
- W2050874588 modified "2023-10-16" @default.
- W2050874588 title "Finite Element Approximations of an Optimal Control Problem with Integral State Constraint" @default.
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- W2050874588 doi "https://doi.org/10.1137/080737095" @default.
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