List questions from group-actions

Published on 30 Mar 2026 - 8:56

50

Views

Cartesian product of transitive group actions, stabilizer groups

Published on 03 Sep 2023 - 17:26

52

Views

GL(2,3) acting on $X$={{$\pm A$}, {$\pm B$}, {$\pm C$}}$

Published on 06 Sep 2023 - 7:22

52

Views

Subsets Whose Translates Under Group Action Are $\subseteq$-Ordered

Published on 06 Sep 2023 - 22:36

62

Views

Number of copies of irreducible representations for transitive actions

Published on 20 Mar 2026 - 23:43

188

Views

Why are quotients by free group actions "well behaved"

Published on 25 Mar 2026 - 20:42

49

Views

Is there are name for this class of multilinear functions related to the symmetric and alternating classes?

Published on 27 Mar 2026 - 7:50

53

Views

If $X$ is a finite $G$-set and $|g|=p^n$ with $n\ge 1$, show that $|X|=|X^{g^{p^{n-1}}}|\pmod{p^n}$.

Published on 14 Sep 2023 - 12:42

54

Views

$|\textbf{N}_G(H):H|$ is the number of right cosets of $H$ in $G$ invariant under right multiplication (by $H$)

Published on 16 Sep 2023 - 13:24

104

Views

What does it mean that homogeneous spaces "look the same everywhere"?

Published on 25 Mar 2026 - 16:09

94

Views

Quotient of projective group scheme by a finite group action

Published on 29 Mar 2026 - 12:11

73

Views

A Question About Coprime Actions

Published on 18 Sep 2023 - 18:02

43

Views

Generalisation of the notion of normalizer

Published on 19 Sep 2023 - 3:24

56

Views

A question about coprime action on a 2-group

Published on 19 Sep 2023 - 8:19

35

Views

Primitive maximal subgroups of $S_{n}$

Published on 25 Mar 2026 - 7:41

List Question

Orbit stabiliser theorem as an analogue to first isomorphism theorem

Cartesian product of transitive group actions, stabilizer groups

GL(2,3) acting on $X$={{$\pm A$}, {$\pm B$}, {$\pm C$}}$

Subsets Whose Translates Under Group Action Are $\subseteq$-Ordered

Number of copies of irreducible representations for transitive actions

Why are quotients by free group actions "well behaved"

Is there are name for this class of multilinear functions related to the symmetric and alternating classes?

If $X$ is a finite $G$-set and $|g|=p^n$ with $n\ge 1$, show that $|X|=|X^{g^{p^{n-1}}}|\pmod{p^n}$.

$|\textbf{N}_G(H):H|$ is the number of right cosets of $H$ in $G$ invariant under right multiplication (by $H$)

What does it mean that homogeneous spaces "look the same everywhere"?

Quotient of projective group scheme by a finite group action

A Question About Coprime Actions

Generalisation of the notion of normalizer

A question about coprime action on a 2-group

Primitive maximal subgroups of $S_{n}$

Trending Questions

Popular # Hahtags

Popular Questions