time scales

In this paper, by using fixed point theorems in cones, we study the existence of at least one, two and three positive solutions of a nonlinear second-order three-point boundary value problem for dynamic equations on time scales. As an application, we also give some examples to demonstrate our results. (C) 2006 Elsevier B.V. All rights reserved.C1 Pamukkale Univ, Dept Math, TR-20070 Denizli, Turkey