关于绝对矩的几个性质
Some Properties of the Absolute Moment
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摘要: 本文研究了独立随机变量之和的绝对矩的几个性质, 其中包括\ep|X+Y|-\ep|X-Y|的表达式, 这里X和Y是相互独立的随机变量.Abstract: We discuss several properties of the absolute moment of sums of independent random variables, including the expression of \ep|X+Y|-\ep|X-Y|, where X and Y are i.i.d. random variables.