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Wang, Yaxiong; Zeng, Yi Admissible observation operator for linear systems. (Chinese. English summary) Zbl 1199.47063 J. Sichuan Norm. Univ., Nat. Sci. 31, No. 5, 513-515 (2008). MSC: 47A48 47D60 93B07 93C05 PDFBibTeX XMLCite \textit{Y. Wang} and \textit{Y. Zeng}, J. Sichuan Norm. Univ., Nat. Sci. 31, No. 5, 513--515 (2008; Zbl 1199.47063)
Li, Kelin; Zeng, Yi Robust absolute stability of interval nonlinear Lurie control systems with multi-delay. (Chinese. English summary) Zbl 1150.93533 J. Sichuan Norm. Univ., Nat. Sci. 30, No. 1, 27-30 (2007). MSC: 93D09 93C10 PDFBibTeX XMLCite \textit{K. Li} and \textit{Y. Zeng}, J. Sichuan Norm. Univ., Nat. Sci. 30, No. 1, 27--30 (2007; Zbl 1150.93533)
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Zeng, Yi Limit cycles of a predator-prey system. (Chinese. English summary) Zbl 0949.34020 J. Sichuan Norm. Univ., Nat. Sci. 22, No. 6, 676-680 (1999). MSC: 34C05 92D25 34C60 PDFBibTeX XMLCite \textit{Y. Zeng}, J. Sichuan Norm. Univ., Nat. Sci. 22, No. 6, 676--680 (1999; Zbl 0949.34020)