
This paper extends some basic results on absolute stability and hyperstability from linear plants subject to a wide class of nonlinear controllers to plants having delays in the state while being controlled by the same classes of nonlinear controllers. The stability results have been interpreted in terms of positive realness conditions on transfer functions.
Control problems for functional-differential equations, delays, Popov inequalities, nonlinear controllers, absolute stability, Popov-type stability of feedback systems, hyperstability
Control problems for functional-differential equations, delays, Popov inequalities, nonlinear controllers, absolute stability, Popov-type stability of feedback systems, hyperstability
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