Advances in Difference Equations
Volume 2007 (2007), Article ID 68023, 15 pages
doi:10.1155/2007/68023
Research Article

Periodic and Almost Periodic Solutions of Functional Difference Equations with Finite Delay

Yihong Song

Department of Mathematics, Suzhou University, Suzhou 215006, Jiangsu, China

Received 4 November 2006; Revised 29 January 2007; Accepted 29 January 2007

Academic Editor: John R. Graef

Copyright © 2007 Yihong Song. 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.

Abstract

For periodic and almost periodic functional difference equations with finite delay, the existence of periodic and almost periodic solutions is obtained by using stability properties of a bounded solution.