Robust stability of time-variant discrete-time systems with bounded parameter perturbations

In this paper, global asymptotic stability of linear, time-variant, finite dimensional, zero input difference equations is investigated. We propose a technique that may be utilized to obtain regions of asymptotic stability in the coefficient space that incorporate information regarding the maximum rate of change of system parameters. Use of different matrix norms provide different "shapes" for the maximum allowable coefficient perturbations.<
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