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Shimrod
  • Member for 6 years
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49 votes
3 answers
6k views

Is the Riemann zeta function surjective?

28 votes
1 answer
2k views

Intuitive reason why the $j$-invariant is a cube?

13 votes
1 answer
514 views

Why is this function a modular function of level $5$?

11 votes
2 answers
520 views

Effective bound on the expansion of the $j$-invariant

10 votes
1 answer
707 views

Why are the coefficients of the modular equation so large?

8 votes
1 answer
728 views

Gauss - Dirichlet class number formula

8 votes
2 answers
837 views

Serre's formula for $\Delta^{1/3}$

7 votes
1 answer
593 views

Origin of $j$-invariant

7 votes
1 answer
269 views

Why does the class equation have rational coefficients?

7 votes
1 answer
500 views

What is the Galois group of the modular equation?

6 votes
2 answers
411 views

Modular parametrization of a curve of Heegner and Weber

6 votes
1 answer
727 views

Galois theory of modular functions

5 votes
0 answers
180 views

Modular functions of the type $\mathfrak f(\cdot)^{k}\mathfrak f(\cdot)^{23nk}$

5 votes
1 answer
430 views

Cube root of the $j$-invariant

5 votes
1 answer
855 views

Origin of Hecke operators

5 votes
1 answer
281 views

Modular forms and number of representations by binary quadratic forms

4 votes
1 answer
536 views

Why is Dedekind sum?

4 votes
1 answer
256 views

Examples of models for modular curves

4 votes
1 answer
494 views

How does this calculation of Siegel make sense?

4 votes
1 answer
402 views

Can each ideal class contain an ideal with norm equal to $1$?

4 votes
0 answers
202 views

Kronecker limit formula, modular curves, and the class number problem

4 votes
0 answers
233 views

Class fields without class field theory

4 votes
0 answers
457 views

Galois representation of an elliptic curve with CM

4 votes
0 answers
193 views

Geometric interpretation of the rationality of the $j$-invariant

3 votes
0 answers
96 views

$L$-functions for quadratic orders and Siegel's solution of the class number problem

3 votes
1 answer
268 views

How do modular functions of level $N>1$ transform under the full modular group?

3 votes
1 answer
400 views

Roots of modular functions

3 votes
1 answer
418 views

The degree of the cube root of the $j$-invariant

3 votes
1 answer
112 views

Representatives for the action on an unknown set of matrices by an unknown modular subgroup

3 votes
1 answer
146 views

$L$-series and the $\zeta$-function of ideal classes modulo $f$