摘要

Let {X(i), i >= 1} be a sequence of i.i.d, random variables which is in the domain of attraction of the normal law with mean zero and possibly infinite variance. Denote S(n) = Sigma(n)(i=1) X(i), V(n)(2) = Sigma(n)(i=1) X(i)(2). Then an almost sure central limit theorem for self-normalized partial sums S(n)/V(n) is studied under a mild condition in this paper.