J4 ›› 2014, Vol. 13 ›› Issue (12): 1-1.

• 数学与计算机科学 •    下一篇

利用可加性求一类独立随机变量和的分布

  

  1. 1.内江师范学院数学与信息科学学院,四川内江641100;2.四川省高等学校数值仿真重点实验室,
    四川内江641100
  • 收稿日期:2014-01-10 出版日期:2014-12-15 发布日期:2014-12-15
  • 作者简介:王凡彬,教授,主要从事偏微分方程及应用研究.
  • 基金资助:

    教育部数学与应用数学专业综合改革试点项目
    (ZG0464);四川省高校数值仿真与数学实验教
    学示范中心项目(O1247)

Determing the Distribution of the Sum of Independent Random Variables by Using Additivity

  1. 1. College of Mathematics and Information Science, Neijiang Normal University, Neijiang, Sichuan 641100, China;
    2. Key Laboratory of Numerical Simulation in the Sichuan Provincial College, Neijiang, Sichuan 641100, China
  • Received:2014-01-10 Online:2014-12-15 Published:2014-12-15

摘要:

针对求一类独立随机变量和的分布问题,讨论卷积公式和应用可加性这两种方法的优缺点。指出在一些实际问题中,
应用可加性可避免卷积公式的繁难,收到事半功倍的效果,还能达到卷积公式不能达到的目的。

关键词: 独立随机变量之和, 卷积公式, 可加性

Abstract:

This paper aims to determine the distribution of the sum of a kind of independent random variables, and discuss the
advantages and disadvantages of convolution formula and additivity. It points out that in some practical problems, with less effort and
better result, the method of additivity can avoid complexity of convolution formula and achieve goals that convolution formula can not.

Key words: the sum of independent random variables, convolution formula, additivity

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