研究具脉冲扩散的一个三维Chemostat模型.利用离散动力系统频闪映射,得到了微生物种群灭绝周期解,它是全局吸引的;利用脉冲微分方程理论,得到了系统持久的条件.结论揭示了Chemostat环境变化对Chemostat的产量起着重要的作用.
In this paper, we consider a three-dimensional chemostat model with impulsive diffusion. Using the discrete dynamical system determined by the stroboscopic map, we obtain a microorganism-extinction periodic solution. Further, it is globally asymptotically stable. The permanent condition of the investigated system is also analyzed by the theory on impulsive differential equation. Our results reveal that the envionmental changes of the chemostat play important roles on the outcome of the chemostat.