In chapter 2, We study a nonautonomous SIS model with age structure.
第二章，提出了具有年龄结构和周期传染率的的SIS模型。
2
In this paper we shall discuss the criteria of stability for second-order linear nonautonomous, systems using the integral inequality.
本文所考虑的是二阶非定常系统稳定性的积分不等式判别法。
3
The main results obtained in this paper show that the unique steady state of the nonlinear nonautonomous circuits can be determined by the stability of decomposed matrixes.