Xiao, HanHe, YujingWei, Hui2023-05-152023-05-152022-12-15Han, X., He, Y., & Wei, H. (2022). Existence of positive periodic solutions for a nonlinear system of second-order ordinary differential equations. <i>Electronic Journal of Differential Equations, 2022</i>(83), pp. 1-11.1072-6691https://hdl.handle.net/10877/16807This article concerns the positive periodic solutions for a system of second-order nonlinear ordinary differential equations, in which the nonlinear term is sublinear in one equation and superlinear in the other equation. By using the fixed point theorem of cone expansion and compression we obtain the existence of positive periodic solutions.Text11 pages1 file (.pdf)enAttribution 4.0 InternationalExistence of solutionsPositive periodic solutionsFixed point theoremArticleThis work is licensed under a Creative Commons Attribution 4.0 International License.