Liu, Ping; Li, Yongkun; Lu, Linghong Positive solutions of nonlocal boundary value problem for nonlinear retarded differential equations. (English) Zbl 1112.34043 Appl. Math., Ser. B (Engl. Ed.) 19, No. 3, 263-271 (2004). Reviewer: Robert Hakl (Brno) MSC: 34K10 PDFBibTeX XMLCite \textit{P. Liu} et al., Appl. Math., Ser. B (Engl. Ed.) 19, No. 3, 263--271 (2004; Zbl 1112.34043) Full Text: DOI
Zhu, Lifei; Li, Yongkun Positive solutions of three-point boundary value problem for second order differential equations with an advanced argument. (English) Zbl 1078.34526 Appl. Math., Ser. B (Engl. Ed.) 18, No. 4, 383-389 (2003). Reviewer: Narahari Parhi (Bhubaneswar) MSC: 34K10 PDFBibTeX XMLCite \textit{L. Zhu} and \textit{Y. Li}, Appl. Math., Ser. B (Engl. Ed.) 18, No. 4, 383--389 (2003; Zbl 1078.34526) Full Text: DOI
Li, Yongkun; Xu, Guitong On a periodic prey-predator system with infinite delays. (English) Zbl 0976.34065 Appl. Math., Ser. B (Engl. Ed.) 15, No. 3, 267-272 (2000). MSC: 34K13 92D25 PDFBibTeX XMLCite \textit{Y. Li} and \textit{G. Xu}, Appl. Math., Ser. B (Engl. Ed.) 15, No. 3, 267--272 (2000; Zbl 0976.34065) Full Text: DOI