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For Popov's frequency-domain inequality a general solution is constructed in L , which relies on the strict positive realness of a generating function. This solution allows revealing time-domain properties, equivalent to the fulfilment of Popov's inequality in the frequencydomain. Particular aspects occurring in the dynamics of the linear subsystem involved(More)
The research explores the robustness of closed-loop CWEAS (componentwise exponential asymptotic stability) with respect to plant and/or controller uncertainties. The main focus is placed on the fragility/nonfragility analysis that quantifies the controller contribution to the closed-loop robustness. We develop a computer-assisted methodology for testing(More)
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