Li, Yanhong; Li, Yongxiang The upper and lower solution method for a class of fully third-order boundary value problems. (Chinese. English summary) Zbl 1413.34101 J. Sichuan Norm. Univ., Nat. Sci. 41, No. 3, 343-347 (2018). MSC: 34B15 47N20 PDFBibTeX XMLCite \textit{Y. Li} and \textit{Y. Li}, J. Sichuan Norm. Univ., Nat. Sci. 41, No. 3, 343--347 (2018; Zbl 1413.34101) Full Text: DOI
Shang, Yaya; Shi, Jingwen; Li, Yongxiang The solutions for second order impulsive differential equations with dependence on the derivative terms in Banach spaces. (Chinese. English summary) Zbl 1389.34186 J. Sichuan Norm. Univ., Nat. Sci. 40, No. 1, 45-50 (2017). MSC: 34G20 34B37 47N20 PDFBibTeX XMLCite \textit{Y. Shang} et al., J. Sichuan Norm. Univ., Nat. Sci. 40, No. 1, 45--50 (2017; Zbl 1389.34186) Full Text: DOI
Shang, Yaya; Li, Yongxiang The existence of solutions for the boundary value problem of nonlinear second-order integro-differential equations. (Chinese. English summary) Zbl 1389.45008 J. Sichuan Norm. Univ., Nat. Sci. 39, No. 6, 833-837 (2016). MSC: 45J05 PDFBibTeX XMLCite \textit{Y. Shang} and \textit{Y. Li}, J. Sichuan Norm. Univ., Nat. Sci. 39, No. 6, 833--837 (2016; Zbl 1389.45008) Full Text: DOI
Bai, Jing; Li, Yongxiang Existence and uniqueness result for third-order periodic boundary value problem with the first derivatives. (Chinese. English summary) Zbl 1349.34069 J. Sichuan Norm. Univ., Nat. Sci. 38, No. 6, 834-837 (2015). MSC: 34B15 47N20 PDFBibTeX XMLCite \textit{J. Bai} and \textit{Y. Li}, J. Sichuan Norm. Univ., Nat. Sci. 38, No. 6, 834--837 (2015; Zbl 1349.34069) Full Text: DOI
Dun, Tiaoxia; Li, Yongxiang Positive solutions to a two-point boundary value problem of a third-order ordinary differential equation. (Chinese. English summary) Zbl 1324.34045 J. Sichuan Norm. Univ., Nat. Sci. 37, No. 6, 810-813 (2014). MSC: 34B18 47N20 PDFBibTeX XMLCite \textit{T. Dun} and \textit{Y. Li}, J. Sichuan Norm. Univ., Nat. Sci. 37, No. 6, 810--813 (2014; Zbl 1324.34045) Full Text: DOI
Wang, Yuanyuan; Li, Yongxiang Positive solutions for boundary value problems of fourth-order differential equations with delay. (Chinese. English summary) Zbl 1313.34190 J. Sichuan Norm. Univ., Nat. Sci. 37, No. 2, 172-177 (2014). MSC: 34K10 47N20 PDFBibTeX XMLCite \textit{Y. Wang} and \textit{Y. Li}, J. Sichuan Norm. Univ., Nat. Sci. 37, No. 2, 172--177 (2014; Zbl 1313.34190) Full Text: DOI