Discrete Dynamics in Nature and Society
Volume 2006 (2006), Article ID 78607, 10 pages

Permanence for a class of nonlinear difference systems

Binxiang Dai1 and Xingfu Zou2

1School of Mathematical Science and Computing Technology, Central South University, Changsha 410075, Hunan, China
2Department of Applied Mathematics, University of Western Ontario, London N6A 5B7, ON, Canada

Received 22 January 2006; Accepted 13 March 2006

Copyright © 2006 Binxiang Dai and Xingfu Zou. 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.


A class of nonlinear difference systems is considered in this paper. By exploring the relationship between this system and a correspondent first-order difference system, some permanence results are obtained.