Artstein's theorem

Artstein's theorem

Artstein's theorem states that a dynamical system has a differentiable control-Lyapunov function if and only if there exists a regular stabilizing feedback u(x). [Sontag, Eduardo D. [http://citeseer.ist.psu.edu/sontag89universal.html A Universal Construction Of Artstein's Theorem On Nonlinear Stabilization] ]

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