Question

Understanding the proof 3

score 78 · Answer 1 · 2019-06-30 15:40:59

78

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Understanding the proof 3

Published on 30 Jun 2019 - 15:40

score 255 · Answer 2 · 2019-07-17 07:49:13

255

Views

Modular functions of weight 0 and the J invariant

Published on 17 Jul 2019 - 7:49

score 299 · Answer 3 · 2026-03-25 04:36:50

299

Views

Regarding definitions of modular functions and modular forms

Published on 25 Mar 2026 - 4:36

score 239 · Answer 4 · 2026-03-22 05:53:05

239

Views

Left and right coset representatives of $\text{SL}_2(\mathbb{Z})$ action

Published on 22 Mar 2026 - 5:53

score 178 · Answer 5 · 2026-03-25 07:40:14

178

Views

What do "orbits" look like?

Published on 25 Mar 2026 - 7:40

score 283 · Answer 6 · 2026-03-25 01:20:39

283

Views

Prove j(E) is an integer for an elliptic curve with CM by a quadratic field of class number 1

Published on 25 Mar 2026 - 1:20

score 340 · Answer 7 · 2019-07-30 17:42:13

340

Views

the generators of the modular group are S and T

Published on 30 Jul 2019 - 17:42

score 94 · Answer 8 · 2019-07-31 10:47:30

94

Views

Calculating the values of $S(e^{-\frac{\pi}{25}})$ and $S(e^{-5\pi})$.

Published on 31 Jul 2019 - 10:47

score 106 · Answer 9 · 2019-07-31 19:14:28

106

Views

Why is the map $\mathrm{SL}_2(\mathbb{R})/\mathrm{SO}(2) \rightarrow \mathbb{H} : A \mapsto Ai$ injective?

Published on 31 Jul 2019 - 19:14

score 43 · Answer 10 · 2026-03-25 04:38:55

43

Views

Help me understand the translation between homogeneous elliptic functions and modular functions

Published on 25 Mar 2026 - 4:38

score 52 · Answer 11 · 2026-03-21 17:55:09

52

Views

If $G$ is a group acting on a set $H$, what does it mean for two elements of set $H$ to be "congruent modulo $G$"?

Published on 21 Mar 2026 - 17:55

score 83 · Answer 12 · 2026-03-25 07:51:27

83

Views

Modular form that takes value $1$ at a particular cusp, but vanishes at the remaining cusps

Published on 25 Mar 2026 - 7:51

score 95 · Answer 13 · 2026-03-25 04:38:19

95

Views

Finding a basis for the Eisenstein space $\mathcal{E}_1(12,\chi)$

Published on 25 Mar 2026 - 4:38

score 492 · Answer 14 · 2019-08-09 16:05:41

492

Views

The order of a modular form is invariant under the action of $SL_2(\mathbb Z)$

Published on 09 Aug 2019 - 16:05

score 108 · Answer 15 · 2019-08-09 17:19:29

108

Views

For the divisor function $\sigma_k(n)=\sum_{d|n}d^k$, is there any definition for $\sigma_k(0)$?

Published on 09 Aug 2019 - 17:19

List Question

Understanding the proof 3

Modular functions of weight 0 and the J invariant

Regarding definitions of modular functions and modular forms

Left and right coset representatives of $\text{SL}_2(\mathbb{Z})$ action

What do "orbits" look like?

Prove j(E) is an integer for an elliptic curve with CM by a quadratic field of class number 1

the generators of the modular group are S and T

Calculating the values of $S(e^{-\frac{\pi}{25}})$ and $S(e^{-5\pi})$.

Why is the map $\mathrm{SL}_2(\mathbb{R})/\mathrm{SO}(2) \rightarrow \mathbb{H} : A \mapsto Ai$ injective?

Help me understand the translation between homogeneous elliptic functions and modular functions

If $G$ is a group acting on a set $H$, what does it mean for two elements of set $H$ to be "congruent modulo $G$"?

Modular form that takes value $1$ at a particular cusp, but vanishes at the remaining cusps

Finding a basis for the Eisenstein space $\mathcal{E}_1(12,\chi)$

The order of a modular form is invariant under the action of $SL_2(\mathbb Z)$

For the divisor function $\sigma_k(n)=\sum_{d|n}d^k$, is there any definition for $\sigma_k(0)$?

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