Abstract and Applied Analysis
Volume 2009 (2009), Article ID 987343, 14 pages
Research Article

Unique Positive Almost Periodic Solution for Discrete Nonlinear Delay Survival Red Blood Cells Model

Department of Mathematics, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China

Received 15 June 2008; Accepted 20 February 2009

Academic Editor: John Mallet-Paret

Copyright © 2009 Xitao Yang and Siping Tang. 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.


We obtain sufficient conditions which guarantee the global attractivity of solutions for nonlinear delay survival red blood cells model. Then, some criteria are established for the existence, uniqueness and global attractivity of positive almost periodic solutions of the almost periodic system.