Question

Does SO$(V, Q)$ have a unique connected double cover?

score 240 · Answer 1 · 2026-03-27 17:42:08

240

Views

Does SO$(V, Q)$ have a unique connected double cover?

Published on 27 Mar 2026 - 17:42

score 43 · Answer 2 · 2023-01-03 18:36:37

43

Views

Locally continuous section for quotient by a closed subgroup of a Lie group

Published on 03 Jan 2023 - 18:36

score 44 · Answer 3 · 2023-01-05 12:23:24

44

Views

A Borel-measurable version of a measurable group morphism

Published on 05 Jan 2023 - 12:23

score 76 · Answer 4 · 2023-01-08 23:40:20

76

Views

Let G be a topological group and A,B $\subset$ G with A closed and B compact then AB is closed.

Published on 08 Jan 2023 - 23:40

score 143 · Answer 5 · 2026-03-25 14:32:36

143

Views

Any Cauchy sequence on a topological vector space is bounded

Published on 25 Mar 2026 - 14:32

score 70 · Answer 6 · 2026-03-27 18:48:37

70

Views

Why are (Hausdorff) locally compact groups interesting?

Published on 27 Mar 2026 - 18:48

score 117 · Answer 7 · 2026-04-04 18:59:04

117

Views

Doubt in the proof of Theorem 6.4 in Rudin, Functional Analysis, 1973

Published on 04 Apr 2026 - 18:59

score 53 · Answer 8 · 2023-01-14 19:59:16

53

Views

Line on torus as inspiration for finding counter example of homeomorphism theorem for topological group actions on topological space

Published on 14 Jan 2023 - 19:59

score 154 · Answer 9 · 2026-03-27 17:52:33

154

Views

Measure Preserving Self-Map of Compact Abelian Group Commuting with Ergodic Translation

Published on 27 Mar 2026 - 17:52

score 148 · Answer 10 · 2023-01-17 20:26:52

148

Views

Prove Locally Euclidean Topological Group is Hausdorff?

Published on 17 Jan 2023 - 20:26

score 66 · Answer 11 · 2023-01-18 20:03:20

66

Views

If $\overline H$ is a subgroup of $G$, is $H \subset G$ a subgroup also?

Published on 18 Jan 2023 - 20:03

score 50 · Answer 12 · 2023-01-21 04:05:34

50

Views

What's an invariant metric of $(\mathbb{C}^*,\cdot)$?

Published on 21 Jan 2023 - 4:05

score 64 · Answer 13 · 2026-03-30 13:54:42

64

Views

G separable group, $\aleph_0 \leq \tau$. What is $l(X)$ and $\omega l(X) (\leq \tau)$? where $X \subseteq G$. And what is $\chi (G)$ (cardinal)?

Published on 30 Mar 2026 - 13:54

score 130 · Answer 14 · 2026-03-29 17:31:30

130

Views

Topological closure and finitely generated groups and monoids

Published on 29 Mar 2026 - 17:31

score 98 · Answer 15 · 2023-01-24 13:10:33

98

Views

Example of a normalizer that is not closed

Published on 24 Jan 2023 - 13:10

List Question

Does SO$(V, Q)$ have a unique connected double cover?

Locally continuous section for quotient by a closed subgroup of a Lie group

A Borel-measurable version of a measurable group morphism

Let G be a topological group and A,B $\subset$ G with A closed and B compact then AB is closed.

Any Cauchy sequence on a topological vector space is bounded

Why are (Hausdorff) locally compact groups interesting?

Doubt in the proof of Theorem 6.4 in Rudin, Functional Analysis, 1973

Line on torus as inspiration for finding counter example of homeomorphism theorem for topological group actions on topological space

Measure Preserving Self-Map of Compact Abelian Group Commuting with Ergodic Translation

Prove Locally Euclidean Topological Group is Hausdorff?

If $\overline H$ is a subgroup of $G$, is $H \subset G$ a subgroup also?

What's an invariant metric of $(\mathbb{C}^*,\cdot)$?

G separable group, $\aleph_0 \leq \tau$. What is $l(X)$ and $\omega l(X) (\leq \tau)$? where $X \subseteq G$. And what is $\chi (G)$ (cardinal)?

Topological closure and finitely generated groups and monoids

Example of a normalizer that is not closed

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