An asymptotic property of a gap sequence
An asymptotic property of a gap sequence
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间隙序列的渐近性质
DOI:
10.3792/pja/1195523464
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发表时间:
1962
影响因子:
0.5
通讯作者:
Shigeru Takahashi
中科院分区:
文献类型:
--
作者:
Shigeru Takahashi
and [n] be a laeunary sequence of positive integers, that is, (1.2) n+l/n>q 1. Then the sequence of functions {f(nt)}, although themselves not independent, exibits the properties of independent random variables (c.f. 3). In 2 Professor S. Izumi proved that if f(t) satisfies certain smoothness conditions, then {f(2t)} obeys the law of the iterated logarithm, tIowever if we put f(t)-cos2zt+cos4zt and n-2--1, then, by the theorem of ErdSs and Gl 1, we have, 1 lim ,f(nt) =2 cos zt, a.e. in t. -/Nlog logN=l This shows that {f(nt)} does not necessarily obey the law of the iterated logarithm even if f(t) is a trigonometric polynomal. In 2-4 we shall prove the following Theorem. Let f(t) and {n} satisfy (1.1) and (1.2) respectively and f(t) be a function of Lip , 0 _