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中国科学院大学学报 ›› 2003, Vol. 20 ›› Issue (3): 273-278.DOI: 10.7523/j.issn.2095-6134.2003.3.002

• 论文 • 上一篇    下一篇

经济系统中几个微分方程模型

李林   

  1. 北京石油化工学院数理部, 北京 102600
  • 收稿日期:2002-05-20 修回日期:2002-07-15 发布日期:2003-05-10

Several Differential Equation Models in Economic Systems

LI Lin   

  1. Department of Mathematics and Physics, Beijing Institute of Petrochemical Technology, Beijing 102600, China
  • Received:2002-05-20 Revised:2002-07-15 Published:2003-05-10

摘要:

建立了市场经济中供求关系的两类数学模型。根据商品数量的不同,对供给函数和需求函数的假设不同,建立了几个微分方程模型。研究了其中一个模型的Hopf分支问题,给出了均衡价格的局部稳定性条件和出现Hopf分支的条件

关键词: 微分方程模型, 平衡点, 稳定性, Hopf分支

Abstract:

Two classes of mathematical models are obtained.According to the number of commodities and their supply and demand the present paper constructs five differential equations and differential delay equation models.The Hopf bifurcation of one of the models is discussed.The conditions, under which the equilibrium is locally stable or Hopf bifurcation occurs, are given.

Key words: differential equation models, equilibrium, stability, Hopf bifurcation

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