Li, Yongxiang; Li, Qiang Positive periodic solutions of third-order ordinary differential equations with delays. (English) Zbl 1474.34473 Abstr. Appl. Anal. 2014, Article ID 547683, 8 p. (2014). MSC: 34K13 34C25 PDF BibTeX XML Cite \textit{Y. Li} and \textit{Q. Li}, Abstr. Appl. Anal. 2014, Article ID 547683, 8 p. (2014; Zbl 1474.34473) Full Text: DOI OpenURL
Li, Yongxiang; Li, Qiang Positive periodic solutions for a second-order functional differential equation. (English) Zbl 1281.34117 Bound. Value Probl. 2012, Paper No. 140, 11 p. (2012). MSC: 34K13 47H10 47N20 PDF BibTeX XML Cite \textit{Y. Li} and \textit{Q. Li}, Bound. Value Probl. 2012, Paper No. 140, 11 p. (2012; Zbl 1281.34117) Full Text: DOI OpenURL
Li, Qiang; Li, Yongxiang On the existence of positive periodic solutions for second-order functional differential equations with multiple delays. (English) Zbl 1260.34136 Abstr. Appl. Anal. 2012, Article ID 929870, 13 p. (2012). MSC: 34K13 47N20 PDF BibTeX XML Cite \textit{Q. Li} and \textit{Y. Li}, Abstr. Appl. Anal. 2012, Article ID 929870, 13 p. (2012; Zbl 1260.34136) Full Text: DOI OpenURL
Li, Yongxiang Positive periodic solutions of second-order differential equations with delays. (English) Zbl 1246.34037 Abstr. Appl. Anal. 2012, Article ID 829783, 13 p. (2012). MSC: 34C25 PDF BibTeX XML Cite \textit{Y. Li}, Abstr. Appl. Anal. 2012, Article ID 829783, 13 p. (2012; Zbl 1246.34037) Full Text: DOI OpenURL
Shen, Jianhua; Liang, Ruixi Periodic solutions for a kind of second order neutral functional differential equations. (English) Zbl 1130.34331 Appl. Math. Comput. 190, No. 2, 1394-1401 (2007). Reviewer: Jianhong Wu (North York) MSC: 34K13 34K40 PDF BibTeX XML Cite \textit{J. Shen} and \textit{R. Liang}, Appl. Math. Comput. 190, No. 2, 1394--1401 (2007; Zbl 1130.34331) Full Text: DOI OpenURL