Robert Bruno Wenczel

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In this paper we study some second order conditions that may be added to the first order nessessary optimality condition 0 ∈ ∂pf(x̄) (with ∂pf denoting the proximal subdifferential) in order to obtain a sufficient condition for a strict local minimum for extended–real-valued, nonsmooth functions. Three different types of second order conditions are(More)
A dual formulation for the problem of determining absolute performance limitations on overshoot, undershoot, maximum amplitude and fluctuation minimisation for continuous-time feedback systems is constructed. Determining, for example, the minimum possible overshoot attainable by all possible stabilising controllers is an optimisation task that cannot be(More)
A dual formulation for the problem of determining absolute performance limitations on overshoot, undershoot, maximum amplitude and fluctuation minimisation for continuous-time feedback systems is constructed. Determining, for example, the minimum possible overshoot attainable by all possible stabilising controllers is an optimisation task that cannot be(More)
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