Abstract
In this paper, we examine a recently reported bounded real lemma for two-dimensional (2-D) discrete systems using asymmetric Lyapunov matrix (Vidyarthi et al. in Circuits Syst Signal Process 36(10):3901–3918, 2017). It is shown that the bounded real lemma, as it is, is incorrect and may lead to erroneous conclusion. Moreover, various corrected and equivalent forms of their bounded real lemma are discussed.
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Agarwal, N., Kar, H. Bounded Real Lemma for 2-D Discrete Systems Using Asymmetric Lyapunov Matrix: What Shall It Be?. Circuits Syst Signal Process 37, 4082–4089 (2018). https://doi.org/10.1007/s00034-018-0749-0
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DOI: https://doi.org/10.1007/s00034-018-0749-0