IMA Journal of Mathematical Control and Information Advance Access originally published online on November 22, 2005
IMA Journal of Mathematical Control and Information 2006 23(1):11-41; doi:10.1093/imamci/dni037
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Non-uniform robust global asymptotic stability for discrete-time systems and applications to numerical analysis
Division of Mathematics, Department of Economics, University of Athens, 8 Pesmazoglou Street, 10559, Athens, Greece
The notion of non-uniform Robust Global Asymptotic Stability (RGAS) presented in this paper generalizes the notion of non-uniform in time RGAS for finite- or infinite-dimensional discrete-time systems. Lyapunov characterizations for this stability notion are provided. The results are applied to finite-dimensional discrete-time systems obtained by time discretization of continuous-time systems by the explicit Euler method.
Keywords: discrete-time systems; time discretization; Lyapunov functions.
Received on 24 July 2004. accepted on 6 January 2005.