Advances in Difference Equations
Volume 2005 (2005), Issue 3, Pages 263-274
Periodic solutions of a discrete-time diffusive system governed by backward difference equations
School of Mathematical Science and Computing Technology, Central South University, Hunan, Changsha 410075, China
Received 22 November 2004; Revised 16 January 2005
Copyright © 2005 Binxiang Dai and Jiezhong 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 discrete-time delayed diffusion model governed by backward
difference equations is investigated. By using the coincidence
degree and the related continuation theorem as well as some priori
estimates, easily verifiable sufficient criteria are established
for the existence of positive periodic solutions.