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
R. Paley
中科院分区:
数学1区
文献类型:
--
作者:
R. Paley

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这个系统已经由沃尔什J.用不同的方法得到。沃尔什证明了方程()。1)定义区间(0,1)的正交函数的规范化集合。任何在区间(0,1)内绝对可积的函数f(t)都可以通过函数 * pn(t)展开(相当形式地)为级数(1.2)f(t)~ Scn +n(t),n= 0,其中数cn由以下等式定义:
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