摘要
Using a fixed point theorem in a cone, we obtain some optimal existence results for single and multiple positive periodic solutions to a functional difference system with feedback control. Moreover, we apply our results to a population model.
Using a fixed point theorem in a cone, we obtain some optimal existence results for single and multiple positive periodic solutions to a functional difference system with feedback control. Moreover, we apply our results to a population model.
基金
This work is supported by the Natural Science Foundation of Fujian Province (Z0511014) the Foundation of Developing Science and Technology of Fuzhou University (2005-XQ-18).
