New results on the positive almost periodic solutions for a model of hematopoiesis

This paper is concerned with a non-autonomous delayed model of hematopoiesis which is defined on the non-negative function space. Based on the definition of an almost periodic function, we employ a novel argument to establish a delay-independent criteria ensuring the existence, uniqueness, and global exponential stability of positive almost periodic solutions of the model with almost periodic coefficients and delays. Moreover, an example and its numerical simulation are given to illustrate the theoretical results.