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- W4310650026 abstract "This work considers the infinite-time discounted optimal control problem for continuous time input-affine polynomial dynamical systems subject to polynomial state and box input constraints. We propose a sequence of sum-of-squares (SOS) approximations of this problem obtained by first lifting the original problem into the space of measures with continuous densities and then restricting these densities to polynomials. These approximations are tightenings, rather than relaxations, of the original problem and provide a sequence of rational controllers with value functions associated to these controllers converging (under some technical assumptions) to the value function of the original problem. In addition, we describe a method to obtain polynomial approximations from above and from below to the value function of the extracted rational controllers, and a method to obtain approximations from below to the optimal value function of the original problem, thereby obtaining a sequence of asymptotically optimal rational controllers with explicit estimates of suboptimality. Numerical examples demonstrate the approach." @default.
- W4310650026 created "2022-12-14" @default.
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- W4310650026 date "2016-05-01" @default.
- W4310650026 modified "2023-10-02" @default.
- W4310650026 title "Controller design and value function approximation for nonlinear dynamical systems" @default.
- W4310650026 hasPublicationYear "2016" @default.
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