Lewkowicz, Izchak Passive linear continuous-time systems: characterization through structure. (English) Zbl 1454.93097 Syst. Control Lett. 147, Article ID 104816, 9 p. (2021). MSC: 93C05 93C55 PDFBibTeX XMLCite \textit{I. Lewkowicz}, Syst. Control Lett. 147, Article ID 104816, 9 p. (2021; Zbl 1454.93097) Full Text: DOI arXiv
Alpay, Daniel; Lewkowicz, Izchak The positive real lemma and construction of all realizations of generalized positive rational functions. (English) Zbl 1231.93021 Syst. Control Lett. 60, No. 12, 985-993 (2011). MSC: 93B15 15B48 93B52 PDFBibTeX XMLCite \textit{D. Alpay} and \textit{I. Lewkowicz}, Syst. Control Lett. 60, No. 12, 985--993 (2011; Zbl 1231.93021) Full Text: DOI arXiv