List questions from automorphism-group

Published on 25 Jul 2021 - 10:36

117

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Must the poset of "automorphism group variants" be upwards-directed?

Published on 31 Jul 2021 - 21:34

80

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Continuity of a group homomorphism $\beta\colon G\to\text{Aut}(C_{0}(X))$.

Published on 06 Aug 2021 - 10:29

34

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How the index of pointwise stabilizer is 1 or 2 in $Aut(X)$?

Published on 06 Aug 2021 - 14:13

101

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Does finite(ish) language imply upwards-directed potential automorphism groups?

Published on 09 Aug 2021 - 4:10

595

Views

Proof of $\operatorname{Aut}(C_q)\cong C_{q-1}$ by group action?

Published on 12 Aug 2021 - 3:44

85

Views

Hyperbolic length shortest path (Narrowed question: how to find a specific automorphism of the disk)

Published on 12 Aug 2021 - 19:05

174

Views

Property of fixed point-free automorphism

Published on 16 Aug 2021 - 4:48

134

Views

Let $E$ be finite dim ext of a field $F$and let $G$ be a gp of $F$-automorphisms of $E$ s.t $[E:F]=|G|$ Show that $F$ is the fixed field of $G$.

Published on 24 Aug 2021 - 22:43

238

Views

Describe explicitly all the automorphisms of an affine line $\mathbb A^1.$

Published on 27 Mar 2026 - 13:47

49

Views

How to use induction method to prove ${\rm Aut}_e(X_{r+1})$ is a 2−group?

Published on 29 Aug 2021 - 15:48

39

Views

Outer automorphisms of an alternating group

Published on 30 Aug 2021 - 13:35

53

Views

Simple intuitions and proofs on $SU(k)$ outer automorphism without Dynkin diagram

Published on 01 Sep 2021 - 2:26

115

Views

The Multiplier of a Biholomorphism of the Complex Projective Space at a Fixed Point

Published on 26 Mar 2026 - 11:02

59

Views

Showing a map is an automorphism - showing bijectivity

Published on 03 Sep 2021 - 15:42

List Question

Possibilities of an automorphism on $Z_{20}$

Must the poset of "automorphism group variants" be upwards-directed?

Continuity of a group homomorphism $\beta\colon G\to\text{Aut}(C_{0}(X))$.

How the index of pointwise stabilizer is 1 or 2 in $Aut(X)$?

Does finite(ish) language imply upwards-directed potential automorphism groups?

Proof of $\operatorname{Aut}(C_q)\cong C_{q-1}$ by group action?

Hyperbolic length shortest path (Narrowed question: how to find a specific automorphism of the disk)

Property of fixed point-free automorphism

Let $E$ be finite dim ext of a field $F$and let $G$ be a gp of $F$-automorphisms of $E$ s.t $[E:F]=|G|$ Show that $F$ is the fixed field of $G$.

Describe explicitly all the automorphisms of an affine line $\mathbb A^1.$

How to use induction method to prove ${\rm Aut}_e(X_{r+1})$ is a 2−group?

Outer automorphisms of an alternating group

Simple intuitions and proofs on $SU(k)$ outer automorphism without Dynkin diagram

The Multiplier of a Biholomorphism of the Complex Projective Space at a Fixed Point

Showing a map is an automorphism - showing bijectivity

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