关于一类三维 Volterra 系统的持续性

THE PERSISTENCE FOR THREEDIMENSIONAL VOLTERRA SYSTEM

本文用积分均值的方法研究了两捕食者互惠的三维Ｖｏｌｔｅｒｒａ系统，并给出了在环境容量很大且被污染的情况下，系统各种群持续生存与绝灭的阈值．

This paper studies a threedimensional Volterra system by take integrate mean. We, in a large capacity polluted enviroment, give out the thresholds between survival and extinction of every populations of threedimensional Volterra system.