Abstract

The existence of functions the Fourier–Walsh series of which are universal in the sense of signs for the class of almost everywhere finite measurable functions, and the structure of such functions is described.

中文翻译：

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泛函的存在与结构

摘要

在几乎无处不在的可测量函数的类别的符号意义上，傅立叶–沃尔什级数的函数的存在是普遍的，并描述了此类函数的结构。