Question

Number of elements in the cyclotomic $F$ class.

score 62 · Answer 1 · 2026-03-17 07:05:35

62

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Number of elements in the cyclotomic $F$ class.

Published on 17 Mar 2026 - 7:05

score 24 · Answer 2 · 2026-03-17 15:58:13

24

Views

No of elements in a subgroup of the Galois group.

Published on 17 Mar 2026 - 15:58

score 313 · Answer 3 · 2026-03-17 17:13:46

313

Views

Gordon Royle's 21-vertex 21-automorphism graph

Published on 17 Mar 2026 - 17:13

score 166 · Answer 4 · 2018-03-08 07:21:49

166

Views

A part of the proof that $\operatorname{Aut}(G)$ is a subgroup of Symmetric Group of G ($S_G$).

Published on 08 Mar 2018 - 7:21

score 333 · Answer 5 · 2026-03-17 05:02:41

333

Views

Arc transitive problem about Petersen graph

Published on 17 Mar 2026 - 5:02

score 285 · Answer 6 · 2026-03-20 03:37:43

285

Views

Are all power automorphisms of a finite abelian group of the form $f(x)=x^n$?

Published on 20 Mar 2026 - 3:37

score 126 · Answer 7 · 2018-03-15 14:30:19

126

Views

Examples of a group $G$ with a non-trivial homomorphism $f:G \to Z(G)$

Published on 15 Mar 2018 - 14:30

score 288 · Answer 8 · 2026-03-16 23:39:16

288

Views

Commutator of the semidirect product

Published on 16 Mar 2026 - 23:39

score 532 · Answer 9 · 2018-03-21 22:32:31

532

Views

Does there exist a finite group whose automorphism group is simple?

Published on 21 Mar 2018 - 22:32

score 127 · Answer 10 · 2026-03-17 05:15:06

127

Views

For any sets $X$ & $Y$ can the group of automorphisms for the digraph $G(X,Y)=(X\cup Y,X\times Y)$ be express in terms of symmetric groups?

Published on 17 Mar 2026 - 5:15

score 124 · Answer 11 · 2018-03-22 16:23:19

124

Views

Prove that the only automorphism of order 2 of $\mathbb{Z}_q$ is $m \mapsto -m$ for $q = 3$ and $q = 5$ and $q = 7$

Published on 22 Mar 2018 - 16:23

score 88 · Answer 12 · 2026-03-17 14:52:11

88

Views

Why are there only two groups of order 2p for $p=5,7$?

Published on 17 Mar 2026 - 14:52

score 229 · Answer 13 · 2018-03-26 21:40:15

229

Views

What are the graph automorphisms of the Hasse diagram of a (finite) poset?

Published on 26 Mar 2018 - 21:40

score 72 · Answer 14 · 2018-03-27 18:14:48

72

Views

If $G$ embeds isomorphically into $\operatorname{Aut}(G)$ does that imply $Z(G) = \{1\}$?

Published on 27 Mar 2018 - 18:14

score 75 · Answer 15 · 2018-03-28 22:58:43

75

Views

Constructing an isomorphism from dihedral group $D_5$ to Grötzsch graph automorphism group

Published on 28 Mar 2018 - 22:58

List Question

Number of elements in the cyclotomic $F$ class.

No of elements in a subgroup of the Galois group.

Gordon Royle's 21-vertex 21-automorphism graph

A part of the proof that $\operatorname{Aut}(G)$ is a subgroup of Symmetric Group of G ($S_G$).

Arc transitive problem about Petersen graph

Are all power automorphisms of a finite abelian group of the form $f(x)=x^n$?

Examples of a group $G$ with a non-trivial homomorphism $f:G \to Z(G)$

Commutator of the semidirect product

Does there exist a finite group whose automorphism group is simple?

For any sets $X$ & $Y$ can the group of automorphisms for the digraph $G(X,Y)=(X\cup Y,X\times Y)$ be express in terms of symmetric groups?

Prove that the only automorphism of order 2 of $\mathbb{Z}_q$ is $m \mapsto -m$ for $q = 3$ and $q = 5$ and $q = 7$

Why are there only two groups of order 2p for $p=5,7$?

What are the graph automorphisms of the Hasse diagram of a (finite) poset?

If $G$ embeds isomorphically into $\operatorname{Aut}(G)$ does that imply $Z(G) = \{1\}$?

Constructing an isomorphism from dihedral group $D_5$ to Grötzsch graph automorphism group

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