Reachability and Minimal Times for State Constrained Nonlinear Problems without Any Controllability Assumption

  • Authors:
  • Olivier Bokanowski;Nicolas Forcadel;Hasnaa Zidani

  • Affiliations:
  • boka@math.jussieu.fr;forcadel@ceremade.dauphine.fr;Hasnaa.Zidani@ensta.fr

  • Venue:
  • SIAM Journal on Control and Optimization
  • Year:
  • 2010

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Abstract

We consider a target problem for a nonlinear system under state constraints. We give a new continuous level-set approach for characterizing the optimal times and the backward-reachability sets. This approach leads to a characterization via a Hamilton-Jacobi equation, without assuming any controllability assumption. We also treat the case of time-dependent state constraints, as well as a target problem for a two-player game with state constraints. Our method gives a good framework for numerical approximations, and some numerical illustrations are included in the paper.