用元的阶刻画某些有限群

摘要

In this paper we show that symmetric groups Sn for n=19,20,23,24 and finite simple group G2(5) are uniquely determined by their orders of elements.%证明了对称群Sn, n=19,20,23,24和有限单群G2(5)可仅用元的阶唯一确定.