Positive solutions of a nonlinear second-order n-point boundary value problem

摘要

In this paper, we study the existence of at least one or two positive solutions to the n-point boundary value problemwhere 1 ⩽ k ⩽ s ⩽ n − 2, ai, bi ∈ [0, ∞) with . The Krasnoselskii’s fixed-point theorem is used.