List questions from linear-groups

Published on 15 Jul 2014 - 0:28

266

Views

Automorphisms of $GL_2(\mathbb{Z}/p^{n}\mathbb{Z})$

Published on 04 Aug 2014 - 15:11

1.8k

Views

Elements of $GL_{2}(\mathbb{Z})$ of finite order

Published on 21 Sep 2014 - 8:28

2.9k

Views

Conjugacy classes in $SU_2$

Published on 11 Oct 2014 - 12:32

257

Views

Every matrix in $SU(2)$ can be written as: $P= I\cos \theta+ A\sin \theta$, $A$ on the equator.

Published on 24 Nov 2014 - 1:39

785

Views

The rotation group $SO(3)$ may be mapped to a $2$-sphere by sending a rotation matrix to its first column. How can I describe the fibres of the map?

Published on 25 Mar 2026 - 7:46

112

Views

Criterion for $PSL(2,q)$

Published on 03 Oct 2019 - 16:57

527

Views

Quaternions and $SU(2)$

Published on 25 Mar 2026 - 9:40

85

Views

Confusion about dimension of Lie algebras, and 'isomorphism between Lie algebras'

Published on 27 Oct 2019 - 10:47

182

Views

Is $SL(2,3)$ have only $4$ normal subgroup?

Published on 08 Nov 2019 - 17:03

254

Views

Generators and commutator Subgroup of $SL(2,3)$

Published on 09 Nov 2019 - 12:03

457

Views

Proof of Cartan decomposition for $G=\operatorname{GL}_2(F)$ with local field $F$ (and Bruhat decomposition for a matrix with integer coefficients)

Published on 21 Nov 2019 - 14:10

861

Views

$SL(2,\mathbb{Z})$ is a lattice in $SL(2,\mathbb{R})$

Published on 03 Dec 2019 - 5:41

80

Views

If $k^n$ no simple $kG$ module, then we can find a basis in a special form.

Published on 06 Dec 2019 - 14:21

35

Views

Intersection of a locally finite subgroup and a compact subgroup of a linear group.

Published on 16 Dec 2019 - 17:49

List Question

$GL_2(\mathbb{C})$ acting on extended complex numbers.

Automorphisms of $GL_2(\mathbb{Z}/p^{n}\mathbb{Z})$

Elements of $GL_{2}(\mathbb{Z})$ of finite order

Conjugacy classes in $SU_2$

Every matrix in $SU(2)$ can be written as: $P= I\cos \theta+ A\sin \theta$, $A$ on the equator.

The rotation group $SO(3)$ may be mapped to a $2$-sphere by sending a rotation matrix to its first column. How can I describe the fibres of the map?

Criterion for $PSL(2,q)$

Quaternions and $SU(2)$

Confusion about dimension of Lie algebras, and 'isomorphism between Lie algebras'

Is $SL(2,3)$ have only $4$ normal subgroup?

Generators and commutator Subgroup of $SL(2,3)$

Proof of Cartan decomposition for $G=\operatorname{GL}_2(F)$ with local field $F$ (and Bruhat decomposition for a matrix with integer coefficients)

$SL(2,\mathbb{Z})$ is a lattice in $SL(2,\mathbb{R})$

If $k^n$ no simple $kG$ module, then we can find a basis in a special form.

Intersection of a locally finite subgroup and a compact subgroup of a linear group.

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