摘要
本文利用ｋｕｒｏｓ关于可数无扭Ａｂｅｌ群的不变量理论￣［１］给出了求二秩无扭群的自同构群的结构。
On the basis of Kuros′complete system of invariants for countable torsionfreegroups,this paper presents a way of determining the automorphisms of torsionfree groupsof rank 2 and a study is made of the structures of automorphism groups of torsionfreegroups of rank 2.
关键词
自同构群
二秩无扭群
ABEL群
auto morphism group
torsionfree group of rank 2,type of agroup
Kuros′complete system of invariants
p-adic integral number
