Geodesic
On some optimal control problems and their finite difference approximations and regularization for quasilinear elliptic equations with controls in the coefficients
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 47 (2007) no. 3, pp. 376-396 Cet article a éte moissonné depuis la source Math-Net.Ru

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Mathematical statements of the optimal control problems for quasilinear elliptic equations with the controls in the variable coefficients of the equation of state are considered. Both local and integral constraints on the controls are considered. The objective functionals correspond to the optimization with respect to a certain number of quality indexes. Finite difference approximations of optimization problems are constructed, and estimates of the approximation error with respect to the state and to the objective functional are established. The weak convergence in control is proved. The approximations are regularized after Tikhonov. Interesting examples of some applied optimization problems that naturally lead to the nonlinear optimal control problems examined in this paper are considered. 
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F. V. Lubyshev; A. R. Manapova. On some optimal control problems and their finite difference approximations and regularization for quasilinear elliptic equations with controls in the coefficients. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 47 (2007) no. 3, pp. 376-396. http://geodesic.mathdoc.fr/item/ZVMMF_2007_47_3_a2/

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