Remarks on Characteristic Functions
Remarks on Characteristic Functions
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发表时间:
1949
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通讯作者:
G. Pólya
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作者:
G. Pólya
Introduction This short paper consists of two parts which have little in common except that in both we discuss characteristic functions of one-dimensional probability distributions. In the first part we consider characteristic functions of a certain special type whose principal merit lies in the fact that it is easily recognizable. In the second part we deal with finite distributions (contained in a certain finite interval) and with finitely different distributions (coinciding outside a certain finite interval). The notation follows that of Cram6r's well-known tract.' A distribution function is denoted by a capital letter, as F(x), and the corresponding characteristic function by the corresponding small letter, asf(t). Thus