Open Access

Periodic solutions of a discrete-time diffusive system governed by backward difference equations

Advances in Difference Equations20052005:586218

DOI: 10.1155/ADE.2005.263

Received: 22 November 2004

Published: 27 September 2005


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.

Authors’ Affiliations

School of Mathematical Science and Computing Technology, Central South University


© Dai and Zou 2005