List questions from automorphism-group

Published on 25 Mar 2026 - 22:26

140

Views

Abelian groups and automorphisms

Published on 08 Feb 2020 - 23:16

240

Views

Exercise 0.6i in Miles Reid's Commutative Algebra

Published on 09 Feb 2020 - 16:03

48

Views

Question on finding automorphism group of a group.

Published on 11 Feb 2020 - 13:29

136

Views

Luks Trivalent Graph Isomorphism

Published on 13 Feb 2020 - 18:27

276

Views

Proving that ${\rm Aut } G$ has an identity element

Published on 28 Mar 2026 - 4:33

744

Views

About actions of ${\rm Aut}(G)$, conjugacy classes and inner automorphisms of said group

Published on 29 Mar 2026 - 7:00

834

Views

Find elements of a group $\operatorname{Aut}(\mathbb{Z_{20}})$ automorphisms of cyclic group $\mathbb{Z_{20}}$

Published on 15 Feb 2020 - 16:28

204

Views

In a non-commutative ring (possibly without identity) with no nontrivial automorphisms, do nilpotent elements form an ideal?

Published on 25 Mar 2026 - 23:53

214

Views

Automorphism of $G$-set

Published on 29 Mar 2026 - 6:55

223

Views

Exercise 0.6ii in Miles Reid's Commutative Algebra

Published on 22 Feb 2020 - 14:08

126

Views

Nonexistence of $\psi(t) = t + 1$ finite dimensional algebra automorphisms

Published on 25 Feb 2020 - 20:58

48

Views

Fix an element $h\in G$. Define $\varphi_h:G\to G$ by $\varphi_h(g)=hg$. Is that an isomorphism from $G$ to itself?

Published on 01 Mar 2020 - 0:33

183

Views

Why definition of Out(G) does actually make sense?

Published on 26 Mar 2026 - 11:04

242

Views

Let $G=\langle a \rangle$, $o(G)=12$ be a cyclic group, then $T:G \to G$ s.t. $T(x)=x^3$ is not an automorphism

Published on 08 Mar 2020 - 2:25

List Question

Continuous group of automorphisms of $K(H)$

Abelian groups and automorphisms

Exercise 0.6i in Miles Reid's Commutative Algebra

Question on finding automorphism group of a group.

Luks Trivalent Graph Isomorphism

Proving that ${\rm Aut } G$ has an identity element

About actions of ${\rm Aut}(G)$, conjugacy classes and inner automorphisms of said group

Find elements of a group $\operatorname{Aut}(\mathbb{Z_{20}})$ automorphisms of cyclic group $\mathbb{Z_{20}}$

In a non-commutative ring (possibly without identity) with no nontrivial automorphisms, do nilpotent elements form an ideal?

Automorphism of $G$-set

Exercise 0.6ii in Miles Reid's Commutative Algebra

Nonexistence of $\psi(t) = t + 1$ finite dimensional algebra automorphisms

Fix an element $h\in G$. Define $\varphi_h:G\to G$ by $\varphi_h(g)=hg$. Is that an isomorphism from $G$ to itself?

Why definition of Out(G) does actually make sense?

Let $G=\langle a \rangle$, $o(G)=12$ be a cyclic group, then $T:G \to G$ s.t. $T(x)=x^3$ is not an automorphism

Trending Questions

Popular # Hahtags

Popular Questions