Positive solutions to a multi-point boundary value problem with delay

The paper is concerned with the existence of positive solutions for the nonlinear multi-point boundary value problems of a class of second-order delay differential equations. Our results improve some recent results obtained in [D.Q. Jiang, Multiple positive solutions for boundary value problems of second-order delay differential equations, Appl. Math. Lett. 15 (2002) 575–583; Dingyong Bai, Yuantong Xu, Existence of positive solutions for boundary-value problems of second-order delay differential equations, Appl. Math. Lett. 18 (2005) 621–630].