随机离散人口系统建模及稳定性分析

MODEL BUILDING AND STABILITY ANALYZING OF STOCHASTIC DISCRETE POPULATION SYSTEMS

建立了随机人口系统生育、死亡、迁移过程的差分方程模型，对随机离散人口系统按龄均值和二阶中心矩的ＬｙａＰｕｎｏｖ稳定性进行了研究，给出了根据我国１９８７年１％人口抽查资料进行仿真的结果。

This paper uses difference equations to model the stochastic population birthdeath and migration processes, analyzes the Lyapunov stability of the age-dependent first and second moment of the stochastic discrete population systems, gives the simulation results by using the data of 1987's 1% population census of PRC.