Department of Applied Mathematics, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
Copyright © 2009 Da-Bin Wang and Wen Guan. 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.
By using the Leggett-Williams fixed point theorem, the existence of three
positive solutions to a class of nonlinear first-order periodic boundary value problems of
impulsive dynamic equations on time scales with parameter are obtained. An example is
given to illustrate the main results in this paper.