Question

Does viewing an Eisenstein series as a sum over cusps explain the antagonism between Eisenstein serieses and cusp forms?

score 360 · Answer 1 · 2026-05-15 21:23:43

360

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Does viewing an Eisenstein series as a sum over cusps explain the antagonism between Eisenstein serieses and cusp forms?

Published on 15 May 2026 - 21:23

score 81 · Answer 2 · 2026-04-11 06:40:00

81

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Calculation with modular forms

Published on 11 Apr 2026 - 6:40

score 608 · Answer 3 · 2026-04-13 10:58:38

608

Views

Why is $12$ the smallest weight for which a cusp form exists?

Published on 13 Apr 2026 - 10:58

score 1.6k · Answer 4 · 2026-05-10 13:47:43

1.6k

Views

Modular transformations of $\eta(\tau)$

Published on 10 May 2026 - 13:47

score 2.1k · Answer 5 · 2026-04-12 11:17:49

2.1k

Views

How did Hecke come up with Hecke-operators?

Published on 12 Apr 2026 - 11:17

score 149 · Answer 6 · 2026-04-12 10:47:03

149

Views

Reference/Literature on Eichler integrals

Published on 12 Apr 2026 - 10:47

score 144 · Answer 7 · 2026-04-15 09:37:20

144

Views

$\left(\frac{\Delta(6z)\Delta(z)}{\Delta(3z)\Delta(2z)}\right)^{1/2}$ generates the field of modular functions on $\Gamma_1(6)$

Published on 15 Apr 2026 - 9:37

score 161 · Answer 8 · 2026-03-31 16:57:55

161

Views

Question on a proof of $\zeta(3)\notin\mathbb{Q}$

Published on 31 Mar 2026 - 16:57

score 665 · Answer 9 · 2026-04-15 03:14:45

665

Views

Stark's formula for the j-invariant

Published on 15 Apr 2026 - 3:14

score 97 · Answer 10 · 2026-04-15 11:14:34

97

Views

Show that $\sum_{d\in\mathbb{Z}}\sum_{c\ne0}\frac{1}{(c\tau+d)(c\tau+d+1)}=-{2\pi i\over \tau}$?

Published on 15 Apr 2026 - 11:14

score 415 · Answer 11 · 2026-04-11 04:43:13

415

Views

Good source of problems for Knapp's Elliptic Curves?

Published on 11 Apr 2026 - 4:43

score 451 · Answer 12 · 2026-03-26 11:07:10

451

Views

Coefficients of powers of the theta function

Published on 26 Mar 2026 - 11:07

score 124 · Answer 13 · 2026-04-13 15:20:40

124

Views

High-order elements of $SL_2(\mathbb{Z})$ have no real eigenvalues

Published on 13 Apr 2026 - 15:20

score 418 · Answer 14 · 2026-04-13 20:48:27

418

Views

p-adic modular form example

Published on 13 Apr 2026 - 20:48

score 490 · Answer 15 · 2026-04-15 07:16:17

490

Views

Modularity theorem and some results

Published on 15 Apr 2026 - 7:16

List Question

Does viewing an Eisenstein series as a sum over cusps explain the antagonism between Eisenstein serieses and cusp forms?

Calculation with modular forms

Why is $12$ the smallest weight for which a cusp form exists?

Modular transformations of $\eta(\tau)$

How did Hecke come up with Hecke-operators?

Reference/Literature on Eichler integrals

$\left(\frac{\Delta(6z)\Delta(z)}{\Delta(3z)\Delta(2z)}\right)^{1/2}$ generates the field of modular functions on $\Gamma_1(6)$

Question on a proof of $\zeta(3)\notin\mathbb{Q}$

Stark's formula for the j-invariant

Show that $\sum_{d\in\mathbb{Z}}\sum_{c\ne0}\frac{1}{(c\tau+d)(c\tau+d+1)}=-{2\pi i\over \tau}$?

Good source of problems for Knapp's Elliptic Curves?

Coefficients of powers of the theta function

High-order elements of $SL_2(\mathbb{Z})$ have no real eigenvalues

p-adic modular form example

Modularity theorem and some results

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