论文标题
关于特征函数扩展唯一性的注释
A note on uniqueness of extension for characteristic functions
论文作者
论文摘要
令$ f：r \ to c $为概率度量的特征功能。我们研究以下问题：是否确实在$ r $上进行任何封闭的间隔$ i $，而不包含rigins，存在一个特征函数$ g $，以至于$ g $与$ i $ a $ $ i $ in $ i $ in $ g \ g \ g \ equiv f $ co $ r $ co $相合吗？
Let $f:R\to C$ be the characteristic function of a probability measure. We study the following question: Is it true that for any closed interval $I$ on $R$, which does not contain the origin, there exists a characteristic function $g$ such that $g$ coincides with $f$ on $I$ but $g \not\equiv f$ on $R$?
