Academic Editor: Raul F. Manasevich
Copyright © 2010 Jessada Tariboon and Thanin Sitthiwirattham. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
We study the existence of positive solutions to the three-point
integral boundary value problem
, , where and . We show the existence of at least one positive solution if f is either superlinear or sublinear by applying the fixed
point theorem in cones.