提出并研究污染环境下带时滞和脉冲输入的恒化器模型,利用脉冲方程比较定理得到微生物灭绝周期解全局吸引和系统持续生存的充分条件,最后给出一个简单讨论.
In this paper,a chemostat model with periodically pulsed input and time delay is considered.We show that there exists a microorganism-free periodic solution,which is globally attractive.At the same time,we give the sufficient condition for the permanence of the model with time delay and pulsed input.Finally we give a brief discussion.