Zhao, Haiqing Set stability by switched Lyapunov function. (English) Zbl 1278.37060 Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 20, No. 5, 533-542 (2013). MSC: 37N35 37B25 33E30 PDFBibTeX XMLCite \textit{H. Zhao}, Dyn. Contin. Discrete Impuls. Syst., Ser. A, Math. Anal. 20, No. 5, 533--542 (2013; Zbl 1278.37060) Full Text: Link
Zhao, Haiqing Lesser components and generalized ridge estimation. (Chinese. English summary) Zbl 1174.62454 Pure Appl. Math. 24, No. 3, 597-600 (2008). MSC: 62J07 62H12 62H25 62J05 PDFBibTeX XMLCite \textit{H. Zhao}, Pure Appl. Math. 24, No. 3, 597--600 (2008; Zbl 1174.62454)
Zhao, Haiqing Research and application of nonlinear regression correct model in sudden change load forecasting. (Chinese. English summary) Zbl 1174.94426 Math. Pract. Theory 38, No. 1, 88-91 (2008). MSC: 94C99 62J02 PDFBibTeX XMLCite \textit{H. Zhao}, Math. Pract. Theory 38, No. 1, 88--91 (2008; Zbl 1174.94426)