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Some new difference inequalities and an application to discrete-time control systems. (English) Zbl 1263.93143

Summary: Two new nonlinear difference inequalities are considered, where the inequalities consist of multiple iterated sums, and composite function of nonlinear function and unknown function may be involved in each layer. Under several practical assumptions, the inequalities are solved through rigorous analysis, and explicit bounds for the unknown functions are given clearly. Further, the derived results are applied to the stability problem of a class of linear control systems with nonlinear perturbations.

MSC:

93C55 Discrete-time control/observation systems
93C73 Perturbations in control/observation systems
93C10 Nonlinear systems in control theory
93C30 Control/observation systems governed by functional relations other than differential equations (such as hybrid and switching systems)
93D99 Stability of control systems
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