摘要
考虑了一类三种群捕食系统的模型,得到了该模型当比例常数k2=lk1(l>0),k2=kα1(α>1)和k2=kα1(1>α>0)时系统产生Hopf分支的条件,进一步讨论了系统的生态意义.
In this paper a three-dimensional prey predator system is discussed. The conditions of the Hopf bifurcation are obtained when k2=lk1 (l〉0) ,k2=k1^α (α〉1) and k2 =k1^α (1〉α〉0) . At the same time,the significance of the conclusions are interpreted.
出处
《陕西科技大学学报(自然科学版)》
2008年第6期159-162,184,共5页
Journal of Shaanxi University of Science & Technology