Question

Group multiplication and taking of inverses are continuous with respect to the topology on $PSL(2,\mathbb{R})$

score 90 · Answer 1 · 2019-08-13 13:15:49

90

Views

Group multiplication and taking of inverses are continuous with respect to the topology on $PSL(2,\mathbb{R})$

Published on 13 Aug 2019 - 13:15

score 146 · Answer 2 · 2019-08-15 15:15:29

146

Views

free group acting on the 3D sphere

Published on 15 Aug 2019 - 15:15

score 114 · Answer 3 · 2019-08-20 13:20:14

114

Views

How the finite cyclic group $\Bbb{Z}_p$ can be endowed with discrete topology to make it a topological group?

Published on 20 Aug 2019 - 13:20

score 164 · Answer 4 · 2019-08-22 16:00:27

164

Views

show that $ \text{Ext}^1(\mathbb{Q}, \mathbb{Z}) = \hat{\mathbb{Z}}/\mathbb{Z} = \mathbb{A}_f / \mathbb{Q} $

Published on 22 Aug 2019 - 16:00

score 336 · Answer 5 · 2019-08-25 23:02:01

336

Views

Continuous bijection homomorphism between separable topological spaces is homeomorphism

Published on 25 Aug 2019 - 23:02

score 73 · Answer 6 · 2019-08-26 09:42:28

73

Views

Quotient by finite subgroups are biholomorphic.

Published on 26 Aug 2019 - 9:42

score 103 · Answer 7 · 2019-08-27 19:42:52

103

Views

what $Hom(\mathbb{Z}\oplus\mathbb{Z}, \mathbb{Z}/2)$ is?

Published on 27 Aug 2019 - 19:42

score 197 · Answer 8 · 2019-08-29 15:07:22

197

Views

If $G$ is a topological group and $H$ a normal subgroup, then if $H$ and $G/H$ are both totally disconnected then so is $G$.

Published on 29 Aug 2019 - 15:07

score 64 · Answer 9 · 2026-03-25 12:46:28

64

Views

Question about regular representation of compact group.

Published on 25 Mar 2026 - 12:46

score 414 · Answer 10 · 2019-08-31 10:40:02

414

Views

Examples of topological groups that are not metrizable.

Published on 31 Aug 2019 - 10:40

score 263 · Answer 11 · 2026-03-26 04:30:56

263

Views

Parabolic subgroups of real semisimple Lie groups

Published on 26 Mar 2026 - 4:30

score 62 · Answer 12 · 2019-09-19 02:15:52

62

Views

When are the cosets of a dense subspace of a topological group dense?

Published on 19 Sep 2019 - 2:15

score 38 · Answer 13 · 2019-09-20 16:32:39

38

Views

Identity for Haar measure on compact group

Published on 20 Sep 2019 - 16:32

score 686 · Answer 14 · 2026-03-25 14:23:55

686

Views

definition of unimodular group

Published on 25 Mar 2026 - 14:23

score 127 · Answer 15 · 2019-09-29 04:38:33

127

Views

Prove that the space of left translation of $C(G)$ is a $T_0$ space

Published on 29 Sep 2019 - 4:38

List Question

Group multiplication and taking of inverses are continuous with respect to the topology on $PSL(2,\mathbb{R})$

free group acting on the 3D sphere

How the finite cyclic group $\Bbb{Z}_p$ can be endowed with discrete topology to make it a topological group?

show that $ \text{Ext}^1(\mathbb{Q}, \mathbb{Z}) = \hat{\mathbb{Z}}/\mathbb{Z} = \mathbb{A}_f / \mathbb{Q} $

Continuous bijection homomorphism between separable topological spaces is homeomorphism

Quotient by finite subgroups are biholomorphic.

what $Hom(\mathbb{Z}\oplus\mathbb{Z}, \mathbb{Z}/2)$ is?

If $G$ is a topological group and $H$ a normal subgroup, then if $H$ and $G/H$ are both totally disconnected then so is $G$.

Question about regular representation of compact group.

Examples of topological groups that are not metrizable.

Parabolic subgroups of real semisimple Lie groups

When are the cosets of a dense subspace of a topological group dense?

Identity for Haar measure on compact group

definition of unimodular group

Prove that the space of left translation of $C(G)$ is a $T_0$ space

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