Admissible relaxation in optimal control problems for infinite dimensional uncertain systems.
Ahmed, N.U., Xiang, X. (1992)
Journal of Applied Mathematics and Stochastic Analysis
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Ahmed, N.U., Xiang, X. (1992)
Journal of Applied Mathematics and Stochastic Analysis
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Ahmed, N.U., Xiang, X. (1995)
Mathematical Problems in Engineering
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Nikolaos S. Papageorgiou (1991)
Commentationes Mathematicae Universitatis Carolinae
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We establish the existence of an optimal ``state-control'' pair for an optimal control problem of Lagrange type, monitored by a nonlinear elliptic partial equation involving nonmonotone nonlinearities.
Papageorgiou, N. (1995)
Mathematical Problems in Engineering
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Ahmed, N.U. (1992)
Journal of Applied Mathematics and Stochastic Analysis
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Antonella Fiacca, Nikolaos S. Papageorgiou, Francesca Papalini (1998)
Czechoslovak Mathematical Journal
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We consider nonlinear systems with a priori feedback. We establish the existence of admissible pairs and then we show that the Lagrange optimal control problem admits an optimal pair. As application we work out in detail two examples of optimal control problems for nonlinear parabolic partial differential equations.
Wang, Jinrong, Xiang, X., Wei, W. (2009)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Aizicovici, Sergiu, Papageorgiou, Nikolaos S. (1992)
Journal of Applied Mathematics and Stochastic Analysis
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