id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejde-175	Han, Xiao; He, Yujing; Wei, Hui	Existence of positive periodic solutions for a nonlinear system of second-order ordinary differential equations	2022	11	.pdf	application/pdf	4352	256	79	By using the fixed point theorem of cone expansion and compression we obtain the existence of positive periodic solutions. Existence ofsolutions; positive periodic solutions; fixed point theorem.	cache/ejde-175.pdf	txt/ejde-175.txt