Zhang, Yuzhu; Yan, Jurang; Zhao, Aimin Oscillation criteria for a difference equation. (English) Zbl 0904.39009 Indian J. Pure Appl. Math. 28, No. 9, 1241-1249 (1997). Reviewer: D.Bobrowski (Poznań) MSC: 39A12 39A10 PDFBibTeX XMLCite \textit{Y. Zhang} et al., Indian J. Pure Appl. Math. 28, No. 9, 1241--1249 (1997; Zbl 0904.39009)
Zhang, Yuzhu; Yan, Jurang Oscillation of difference equations with continuous arguments. (Chinese. English summary) Zbl 0864.39003 Appl. Math., Ser. A (Chin. Ed.) 11, No. 4, 393-398 (1996). Reviewer: Yang En-Hao (Guangzhou) MSC: 39A12 39A10 PDFBibTeX XMLCite \textit{Y. Zhang} and \textit{J. Yan}, Appl. Math., Ser. A (Chin. Ed.) 11, No. 4, 393--398 (1996; Zbl 0864.39003)
Zhang, Yuzhu; Yan, Jurang Oscillation and asymptotic behavior of solutions of delay logistic equations and inequality. (Chinese. English summary) Zbl 0844.34072 J. Math., Wuhan Univ. 15, No. 3, 340-344 (1995). Reviewer: Wang Cun-Zheng (Chengdu) MSC: 34K11 34C10 PDFBibTeX XMLCite \textit{Y. Zhang} and \textit{J. Yan}, J. Math., Wuhan Univ. 15, No. 3, 340--344 (1995; Zbl 0844.34072)
Zhang, Yuzhu; Yan, Jurang Oscillation criteria for difference equations with continuous arguments. (Chinese. English summary) Zbl 0830.39006 Acta Math. Sin. 38, No. 3, 406-411 (1995). MSC: 39A10 39A12 PDFBibTeX XMLCite \textit{Y. Zhang} and \textit{J. Yan}, Acta Math. Sin. 38, No. 3, 406--411 (1995; Zbl 0830.39006)