Question

Coprime automorphism group implies cyclic with order a cyclicity-forcing number

score 97 · Answer 1 · 2026-03-25 07:42:13

97

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Coprime automorphism group implies cyclic with order a cyclicity-forcing number

Published on 25 Mar 2026 - 7:42

score 116 · Answer 2 · 2026-03-25 06:08:17

116

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Problem related to semidirect product

Published on 25 Mar 2026 - 6:08

score 64 · Answer 3 · 2018-10-11 15:46:01

64

Views

Lifting finite order automorphism of power series ring

Published on 11 Oct 2018 - 15:46

score 160 · Answer 4 · 2018-10-21 11:15:57

160

Views

Reconstructing a non-$\omega$-categorical countable structure from its automorphism group

Published on 21 Oct 2018 - 11:15

score 162 · Answer 5 · 2018-10-23 12:56:45

162

Views

Is it useful to know that automorphisms on $(\mathbb R^{\gt0},+)$ are always continuous?

Published on 23 Oct 2018 - 12:56

score 796 · Answer 6 · 2018-10-25 11:53:18

796

Views

How to show that an automorphism is inner/outer

Published on 25 Oct 2018 - 11:53

score 662 · Answer 7 · 2018-10-28 19:48:11

662

Views

Let $F$ be a finite field with $p^n$ elements where char$(F)=p$

Published on 28 Oct 2018 - 19:48

score 1.4k · Answer 8 · 2018-10-31 07:59:33

1.4k

Views

Let $\phi:\Bbb{Z}_{20} \to \Bbb{Z}_{20}$ be an automorphism and $\phi(5)=5$. What are the possibilities of $\phi(x)$?

Published on 31 Oct 2018 - 7:59

score 308 · Answer 9 · 2026-03-25 09:32:22

308

Views

Computing quotient cayley graphs in GAP

Published on 25 Mar 2026 - 9:32

score 1.1k · Answer 10 · 2018-11-07 04:35:59

1.1k

Views

Deduce that $\mbox{Aut}(\mathbb{Z}/n\mathbb{Z})$ is isomorphic to $(\mathbb{Z}/n\mathbb{Z})^*$ (a group under multiplication)

Published on 07 Nov 2018 - 4:35

score 479 · Answer 11 · 2026-03-25 04:39:43

479

Views

Automorphism group of $\mathbb Z_2^3$

Published on 25 Mar 2026 - 4:39

score 189 · Answer 12 · 2018-11-08 05:15:40

189

Views

The automorphism group of $S_6$ is isomorphic to a semidirect prodct

Published on 08 Nov 2018 - 5:15

score 135 · Answer 13 · 2018-11-08 14:08:46

135

Views

Solvability of the (outer) automorphism group of a central product

Published on 08 Nov 2018 - 14:08

score 44 · Answer 14 · 2018-11-09 13:12:10

44

Views

How to find set of all automorphism of G in given question without evaluating each bijective map?

Published on 09 Nov 2018 - 13:12

score 102 · Answer 15 · 2018-11-11 18:09:06

102

Views

Galois group of finite field extension

Published on 11 Nov 2018 - 18:09

List Question

Coprime automorphism group implies cyclic with order a cyclicity-forcing number

Problem related to semidirect product

Lifting finite order automorphism of power series ring

Reconstructing a non-$\omega$-categorical countable structure from its automorphism group

Is it useful to know that automorphisms on $(\mathbb R^{\gt0},+)$ are always continuous?

How to show that an automorphism is inner/outer

Let $F$ be a finite field with $p^n$ elements where char$(F)=p$

Let $\phi:\Bbb{Z}_{20} \to \Bbb{Z}_{20}$ be an automorphism and $\phi(5)=5$. What are the possibilities of $\phi(x)$?

Computing quotient cayley graphs in GAP

Deduce that $\mbox{Aut}(\mathbb{Z}/n\mathbb{Z})$ is isomorphic to $(\mathbb{Z}/n\mathbb{Z})^*$ (a group under multiplication)

Automorphism group of $\mathbb Z_2^3$

The automorphism group of $S_6$ is isomorphic to a semidirect prodct

Solvability of the (outer) automorphism group of a central product

How to find set of all automorphism of G in given question without evaluating each bijective map?

Galois group of finite field extension

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