A Remarkable Series of Orthogonal Functions (I)
A Remarkable Series of Orthogonal Functions (I)
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DOI:
10.1112/plms/s2-34.1.241
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发表时间:
1932
影响因子:
1.8
通讯作者:
R. Paley
中科院分区:
文献类型:
--
作者:
R. Paley
This system has already been obtained in a different way by Walsh J. Walsh has proved that the equation (]. 1) defines a normalized set of orthogonal functions for the interval (0, 1). Every function f (t) absolutely integrable in the interval (0, 1) can be expanded (quite formally) by means of the functions* pn (t) in the form of a series (1.2) f (t)~ S cn+n (t), n= 0 where the numbers cn are defined by means of the equation