Is an automorphism of the field of real numbers without ordering the identity map?
30817
Is an automorphism of the field of real numbers the identity map?
127198
What is $\mathbb{C}^{Aut(\mathbb{C}/\mathbb{Q})}$?
138911
Is $\mathbb R^2$ a field?
105103
Automorphism from $\Bbb Q$ to $\Bbb Q$
18048
Easy criteria to determine isomorphism of fields?
150961
An example for a homomorphism that is not an automorphism
70196
Is there any well-ordered uncountable set of real numbers under the original ordering?
59882
is it possible for two fields with the same characteristic to not be isomorphic?
31421
Transpose inverse automorphism is not inner
148118
Prove that field of complex numbers cannot be equipped with an order relation
45302
Finding the $\mathbb{Q}$-automorphisms of the splitting field of $x^p-2$ over $\mathbb{Q}$.
78913
In a finite field, is there ever a homomorphism from the additive group to the multiplicative group?
78222
Can any monomorphism of a subfield of a splitting field be extended to an automorphism?
34670
What exactly is the fixed field of the map $t\mapsto t+1$ in $k(t)$?
115782
Proof $\mathbb{A}^n$ is irreducible, without Nullstellensatz
9737
Complex number operations: telling Mathematica variables are real
5893
On the commutative property of multiplication (domain of integers, possibly reals)