摘要：In this paper, we mainly study almost periodicsolution of an impulsive delay SI model with variable coeffi-cients. First we discuss the uniform persistence and globallyasymptotically stable properties of the model. After that, byconstructing a suitable Lyapunov functional and obtainingsome sufficient conditions, we accomplish the research of theexistence of a unique almost periodic solution of the system.The practicability of the main results is verified by a livingexample.
关键词：Almost periodic solution; impulse; time delay; permanence
