江汉大学学报(自然科学版) ›› 2012, Vol. 40 ›› Issue (2): 16-17.

• 数学 • 上一篇    下一篇

关于特征函数的研究

阚兴莉   

  • 收稿日期:2011-09-01 出版日期:2012-04-20 发布日期:2013-11-07
  • 作者简介:阚兴莉(1979—),女,讲师,硕士,研究方向:概率论与数理统计

Research into the Characteristic Function

KAN Xing-li   

  1. Department of Basic Course,Business College of Hubei University of Technology,Wuhan 430079,Hubei,China
  • Received:2011-09-01 Online:2012-04-20 Published:2013-11-07

摘要: 利用特征函数研究了服从二项分布和正态分布下的随机变量的再生性问题,即相互独立的随机变量之和的分布类型是否不变。研究表明,相互独立的随机变量之和的特征函数等于它们的特征函数之积,利用特征函数可以使再生性问题得到简化。

关键词: 特征函数, 随机变量, 再生性

Abstract: By using characteristic function, the dissertation studies regeneration problem of random variables which obey the two-distribution and normal distribution. The research indicates that characteristic function for the sum of the independent random variables is equal to the product of their characteristic functions and by using the characteristic function, regeneration problem can be simplified.

Key words: characteristic function, random variable, reproducing property

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