JOURNAL ARTICLE

强不变原理中的最佳速度

立新 张

Year: 1995 Journal:   Science in China Series A-Mathematics Physics Astronomy & Technological Science (in Chinese) Vol: 25 (1)Pages: 22-27   Publisher: Science China Press

Abstract

设{Xn}为i.i.d.r.v.s.,EX1=0,EX1~2=1,S_n=sum from i=1 to n(Xi),H(x)>0 (x≥0)为非降连续函数,对某γ>0和x0>0,当x≥x0时,x-2-γH(x)非降,x-1logH(x)非增,且x-1logH(x)→0(x→∞),则有一标准Wiener过程{W(t),t≥0},使得 Sn-W(n)=O(invH(n))a.s.(n→∞)的充分必要条件是:对任何t>0有EH(t|X1|)<∞.

Keywords:
Physics Crystallography Chemistry

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