| 关于一个数学期望命题及其推论的证明 |
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| 引用本文： | 谷伟伟,程坤.关于一个数学期望命题及其推论的证明[J].通化师范学院学报,2012,33(2):12-13. |
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| 作者姓名： | 谷伟伟 程坤 |
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| 作者单位： | 1. 中国矿业大学理学院,江苏徐州,221116
2. 南京航空航天大学理学院,江苏南京,211106 |
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| 摘 要： | 文中利用了实变函数中的一些基本思想,证明了一个几乎处处为零的随机变量,它的数学期望一定存在,且期望值就是零,并在此基础上给出了它的两个推论.
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| 关 键 词： | 数学期望 可积 准可积 |
About a Mathematical Expectation Proposition and Proof of Its Inference |
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| GU Wei-wei,CHENG Kun.About a Mathematical Expectation Proposition and Proof of Its Inference[J].Journal of Tonghua Teachers College,2012,33(2):12-13. |
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| Authors: | GU Wei-wei CHENG Kun |
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| Institution: | 1.Faculty of Science,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China; 2.Faculty of Science,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 211106,China) |
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| Abstract: | This paper proves an almost everywhere for 0 random variables with some basic ideas of real variable function,its mathematical expectation must exist,and the expectation value is 0,and based on this,presents two inferences. |
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| Keywords: | mathematical expectation integrable quasi integrable |
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