设X1,X2,…为独立同分布随机变量,记Sn=X1+…+Xn,Mn=max(k≤n)|Sk|,n≥1,本文在充分必要条件下给出了Mn和Sn的对数律之精确渐近性.
Let XI,X2,… be i.i.d, random variables, and set Sn=X1+…+Xn,Mn=max(k≤n)|Sk|,n≥1 The precise rates in tile law of the logarithm for Mn are obtained under sufficient and necessary conditions.