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Instability analysis and improvement of robustness of adaptive control. (English) Zbl 0548.93050
Five cases of instability under applying adaptive control in singularly perturbed systems are considered on examples. Then the authors propose a modification of a previously developed procedure, excluding the appearance of instability in more general situations.
Reviewer: M.Dmitriev

##### MSC:
 93C40 Adaptive control/observation systems 34D15 Singular perturbations of ordinary differential equations 93B35 Sensitivity (robustness) 93C05 Linear systems in control theory 93D05 Lyapunov and other classical stabilities (Lagrange, Poisson, $$L^p, l^p$$, etc.) in control theory
##### Keywords:
instability; singularly perturbed systems
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