Automorphism of $\mathbb{Q}$
105103
Automorphism from $\Bbb Q$ to $\Bbb Q$
130745
Action of finite group of automorphisms on Spec A
157597
Homeomorphism between $\mathbb{Q}$ and $\mathbb{Q}(>0)$, and $\mathbb{Q}(\ge 0)$
83595
Proving that $\mathbb{A}=\{\alpha \in \mathbb{C}: \alpha \text{ is algebraic over } \mathbb{Q} \}$ is not a finite extension
51695
Finding all homomorphisms between $\mathbb{Z}/m\mathbb{Z}$ and $\mathbb{Z}/n\mathbb{Z}$
151699
Group of inner automorphisms of a group $G$
42213
Computing $\text{Gal}(\mathbb{Q}^{ab}/\mathbb{Q})$
134840
Generators and relations for $\text{PSL}(2, \mathbb{F}_q)$
136167
Prove that structure $(Q/{0}; =;*)$ has infinite number of automorphisms
27188
Bijection between $\mathbb{R}$ and $\mathbb{R}/\mathbb{Q}$
29545
$[(x-a_1)(x-a_2) \cdots (x-a_n)]^2 +1$ is irreducible over $\mathbb Q$
111049
Groups with given automorphism groups
13717
Homomorphisms from $S_4$ to $\mathbb Z_2$
63478
Is $\mathbb{Q}(\sqrt{2}) \cong \mathbb{Q}(\sqrt{3})$?
53168
Surjective, Injective, Bijective Functions from $\mathbb Z$ to itself
5906
All group homomorphism from $ \mathbb{Z} _m $ to $\mathbb{Z}_n $
69046
Proof of $\mathbb{Q}$ is not cyclic