数学物理学报 ›› 1999, Vol. 19 ›› Issue (2): 187-195.

• 论文 • 上一篇    下一篇

一类高微生物数学模型扰动下的Hotf分支

  

  1. 中国科学院成都计算所数理室 成都 610041) 西南民族学院数学系 |成都 610041
  • 出版日期:1999-05-01 发布日期:1999-05-01

Hopf bifurcation in the multi-dimension biomathematics model under small perturbation

  1. (Center for Mathematical Sciences,CICA,Academia Sinica,Chengdu 61004(Department of Mathematics,Southwest Nationalities College,Chengdu 610041 (Center for Mathematical Sciences, CICA, Academia Sinica, Chengdu 610041)
  • Online:1999-05-01 Published:1999-05-01

摘要:

讨论一类六维生物数学模型,在[1,2]的基础上,进一步考虑生物种群之间的相互作用,引进扰动项,研究了中心流形及Hopf分支问题.利用计算机代数符号软件计算了中心流形,得到了产生Hopf分支的判定条件,并给出了数值算例,所用机器证明的思想方法可广泛运用于类似复杂生物数学模型的研究.

关键词: 定性理论, 平衡点, 中心流形, Hopf分支, 计算机代数

Abstract:

The six-dimension biomathematics model is studied. Interactions among the microbes are considered and the model in [1] [2] is improved. The problems on center manifold and Hopf bifurcation a re discussed .The center manifold and the criterion quantity of Hopf bifurcation are computed by using symbolic software based on computer algebra. The numerical examples are given. The idea and method on Automated Theorem proving can be applied to various complex biodynamical systems.

Key words: Qualitativetheory, Equilibrium points, Center manifold, Hopfbifurcation, Computeralgebra

中图分类号: 

  • 34C