J4 ›› 2012, Vol. 50 ›› Issue (03): 482-.

• 数学 • 上一篇    下一篇

随机食物有限种群模型参数估计的相合性及其渐近分布

韩七星1, 孙伟志2   

  1. 1. 长春师范学院 数学学院, 长春 130032|2. 长春理工大学 理学院, 长春 130022
  • 收稿日期:2011-06-28 出版日期:2012-05-26 发布日期:2012-05-28
  • 通讯作者: 孙伟志 E-mail:wzsun@nenu.edu.cn

Consistence and Asymptotic Distribution of Parameters Estimatorsof Food Limited Species Model with Random Perturbation

HAN Qixing1, SUN Weizhi2   

  1. 1. School of Mathematics, Changchun Normal University, Changchun 130032, China;2. College of Science, Changchun University of Science and Technology, Changchun 130022, China
  • Received:2011-06-28 Online:2012-05-26 Published:2012-05-28
  • Contact: SUN Weizhi E-mail:wzsun@nenu.edu.cn

摘要:

利用随机微分方程理论及统计学方法, 研究随机食物有限型模型N[DD(-*3]·[DD)〗(t)=N(t)〖JB((〗〖SX(〗K-N(t)〖〗K+CN(t)〖SX)〗〖JB))〗(r+αB[DD(-*3]·[DD)](t)),其中B(t)是一维Brown运动, 满足B(0)=0, 初值0

关键词: 食物有限种群模型, 参数的极大似然估计, 相合性, 渐近分布

Abstract:

We investigated a random food limit species modelN[DD(-*3]·[DD)〗(t)=N(t)〖JB((〗〖SX(〗K-N(t)〖〗K+CN(t)〖SX)〗〖JB))〗(r+αB[DD(-*3]·[DD)〗(t))using both stochastic differential equation theory and statistical theory, where B(t) is the 1dimensional standard
 Brownian motion with B(0)=0 and 0

Key words: foodlimit species model, maximum likelihood estimation, consistence, asymptotic distribution

中图分类号: 

  • O211.63