Question

Quotient of modular group and principal congruence subgroup

score 42 · Answer 1 · 2023-04-20 12:20:42

42

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Quotient of modular group and principal congruence subgroup

Published on 20 Apr 2023 - 12:20

score 80 · Answer 2 · 2023-05-24 09:11:25

80

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Reference request: Universal central extension of $\operatorname{PSl}_2(\mathbb Z)$ is the braid group $\mathcal B_3$.

Published on 24 May 2023 - 9:11

score 40 · Answer 3 · 2023-07-25 11:59:35

40

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Riemann Surfaces Associated to Subgroups of the Modular Group

Published on 25 Jul 2023 - 11:59

score 43 · Answer 4 · 2023-08-03 15:43:30

43

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Equivalence between parabolic 1-cocyles and right representations of modular group (from a paper of Zaiger)

Published on 03 Aug 2023 - 15:43

score 70 · Answer 5 · 2026-03-24 23:04:55

70

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what is the exact relation between Dedekind tessellation and modular group

Published on 24 Mar 2026 - 23:04

score 200 · Answer 6 · 2023-11-01 22:41:51

200

Views

Is $\text{SL}(2, \mathbf Z)\simeq\text{Aut}(\mathbf P^1(\mathbf Z))$?

Published on 01 Nov 2023 - 22:41

score 101 · Answer 7 · 2023-11-09 03:30:11

101

Views

Isomorphism of lattices/complex tori

Published on 09 Nov 2023 - 3:30

score 31 · Answer 8 · 2024-02-04 10:57:41

31

Views

Modular symbols, Manin symbols, two and three term relation

Published on 04 Feb 2024 - 10:57

score 31 · Answer 9 · 2024-02-17 17:49:20

31

Views

Almost holomorphic functions

Published on 17 Feb 2024 - 17:49

score 41 · Answer 10 · 2026-03-23 14:39:31

41

Views

Finite index subgroup of congruence subgroup $\Gamma_0(4)$ and $\Gamma$

Published on 23 Mar 2026 - 14:39

score 18 · Answer 11 · 2026-03-19 08:34:38

18

Views

Family of lattices defined by $\langle 1,\tau_n \rangle$ with vanishing imaginary part as $n\to\infty$

Published on 19 Mar 2026 - 8:34

score 80 · Answer 12 · 2024-03-21 22:01:58

80

Views

Orbit of $z$ under $SL_2({\mathbb Z})$ action

Published on 21 Mar 2024 - 22:01

score 234 · Answer 13 · 2015-06-10 08:45:57

234

Views

Action of full modular group on higher level modular functions

Published on 10 Jun 2015 - 8:45

score 604 · Answer 14 · 2016-05-12 11:58:13

604

Views

Name of the modular group

Published on 12 May 2016 - 11:58

score 150 · Answer 15 · 2011-02-25 10:15:07

150

Views

generalisations of the modular group

Published on 25 Feb 2011 - 10:15

List Question

Quotient of modular group and principal congruence subgroup

Reference request: Universal central extension of $\operatorname{PSl}_2(\mathbb Z)$ is the braid group $\mathcal B_3$.

Riemann Surfaces Associated to Subgroups of the Modular Group

Equivalence between parabolic 1-cocyles and right representations of modular group (from a paper of Zaiger)

what is the exact relation between Dedekind tessellation and modular group

Is $\text{SL}(2, \mathbf Z)\simeq\text{Aut}(\mathbf P^1(\mathbf Z))$?

Isomorphism of lattices/complex tori

Modular symbols, Manin symbols, two and three term relation

Almost holomorphic functions

Finite index subgroup of congruence subgroup $\Gamma_0(4)$ and $\Gamma$

Family of lattices defined by $\langle 1,\tau_n \rangle$ with vanishing imaginary part as $n\to\infty$

Orbit of $z$ under $SL_2({\mathbb Z})$ action

Action of full modular group on higher level modular functions

Name of the modular group

generalisations of the modular group

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