I googled for this information but couldn't find anything...
What is the automorphism group of the additive group of the dyadic rationals $\mathbb{Z}[\frac{1}{2}]$ ?
I googled for this information but couldn't find anything...
What is the automorphism group of the additive group of the dyadic rationals $\mathbb{Z}[\frac{1}{2}]$ ?