一些具有常收获率和常投放率的三种群Volterra模型的相图分析

THE PHASE PORTRAIT ANALYSIS OF THREE SPECIES VOLTERRA MODEL WITH THE RATES OF CONSTANT HARVEST AND CONSTANT INVEST

本文对具有某些代数曲面解的具有常收获率和常投放率的三种群Volterra模型在R_+~3内的相图进行了分析,并举出了一些具体例子。

This paper presents the analysis of the phase portrait of three species Volterra model with the rates of corstart harvest, ccnstant invest and certain algebraic curved surface solution in R_+~3 It also offers som practical examples.