Permanence And Almost Periodic Solution Of An N-species Cooperation System On Time Scales

In this paper, using the time scale calculus theory, we consider an N-species cooperation system with time delays and feedback controls on time scales. First, by applying differential inequality on time scales, we discuss the permanence of the system. Based on the permanence results, by constructing a suitable Lyapunov func-tional, we establish sufficient conditions which guarantee the existence of uniformly asymptotically stable almost periodic solution of the system.