User David Loeffler

33 votes

1 answer

3k views

How is etale cohomology of integer rings related to Galois cohomology?

asked Apr 22, 2011 at 9:29

22 votes

2 answers

2k views

Elementary proof of algebraicity of Hecke eigenvalues in weight 1

asked Jan 28, 2011 at 11:14

19 votes

3 answers

1k views

How many Hecke operators span the level 1 Hecke algebra?

asked Oct 19, 2010 at 16:42

19 votes

2 answers

2k views

Generators of the graded ring of modular forms

asked Jun 3, 2011 at 12:48

19 votes

1 answer

2k views

Two-variable p-adic L-functions of elliptic curves

asked Jun 14, 2011 at 15:58

18 votes

1 answer

1k views

Embedding number fields in fields with class number 1

asked Mar 26, 2012 at 7:45

18 votes

1 answer

2k views

Stark's conjecture and p-adic L-functions

asked Mar 20, 2010 at 23:18

17 votes

0 answers

788 views

How many Hecke operators span the Hecke algebra?

asked Oct 19, 2010 at 18:30

17 votes

2 answers

2k views

Why does Tate's conjecture imply semisimplicity of crystalline Frobenius?

asked Feb 20, 2011 at 19:41

17 votes

3 answers

1k views

Does the Manin-Drinfeld theorem hold over number fields?

asked Mar 14, 2013 at 11:35

16 votes

0 answers

2k views

Can one compare integral structures on de Rham and crystalline cohomology?

asked Nov 18, 2010 at 11:15

16 votes

0 answers

780 views

Shimura varieties and connected components

asked Jun 12, 2019 at 15:28

15 votes

1 answer

1k views

Jacquet's approach to Rankin--Selberg L-functions

asked Nov 10, 2015 at 18:58

15 votes

4 answers

4k views

Is the smallest primitive root modulo p a primitive root modulo p^2?

asked Jun 9, 2010 at 13:43

14 votes

1 answer

986 views

P-adic L-functions of nonabelian twists of elliptic curves

asked Jun 1, 2010 at 10:45

14 votes

2 answers

2k views

Motivic cohomology and cohomology of Milnor K-theory sheaf

asked Feb 17, 2013 at 15:40

13 votes

2 answers

1k views

Are Kato's zeta elements integral?

asked Nov 23, 2010 at 19:00

12 votes

1 answer

495 views

Tensor products and two-sided faithful flatness

asked Mar 7, 2010 at 9:55

12 votes

2 answers

834 views

Does there exist a finite-index subgroup of SL2Z with all cusps irregular?

asked Nov 24, 2011 at 10:31

12 votes

1 answer

535 views

Roots of unity near 1 in Z / p Z

asked Apr 11, 2014 at 15:22

12 votes

1 answer

306 views

For a spherical pair $(G, H)$, which $G$-representations appear in $k[G/H]$?

asked Dec 14, 2019 at 16:41

11 votes

0 answers

517 views

P-stabilization of Siegel modular forms

asked Sep 13, 2013 at 15:15

11 votes

1 answer

917 views

Motivic cohomology and pushforward maps

asked Sep 23, 2015 at 8:30

11 votes

0 answers

724 views

Degeneration of etale Hochschild--Serre exact sequence

asked May 19, 2014 at 9:47

11 votes

1 answer

782 views

Atkin--Lehner operators in Hida theory

asked Aug 7, 2014 at 13:48

11 votes

2 answers

2k views

Periods and L-values of modular forms

asked Jun 18, 2011 at 15:07

10 votes

1 answer

1k views

Tamagawa numbers of crystalline Galois representations

asked May 24, 2011 at 11:37

10 votes

2 answers

2k views

When do the $\gamma$-filtration and codimension filtration of K-theory agree?

asked Aug 31, 2012 at 9:45

10 votes

2 answers

2k views

Is there a "universal" cohomology theory for varieties over p-adic fields?

asked Sep 3, 2012 at 12:27

10 votes

0 answers

410 views

Variant of Leopoldt's conjecture

asked Jan 17, 2013 at 17:52

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87 Questions

How is etale cohomology of integer rings related to Galois cohomology?

Elementary proof of algebraicity of Hecke eigenvalues in weight 1

How many Hecke operators span the level 1 Hecke algebra?

Generators of the graded ring of modular forms

Two-variable p-adic L-functions of elliptic curves

Embedding number fields in fields with class number 1

Stark's conjecture and p-adic L-functions

How many Hecke operators span the Hecke algebra?

Why does Tate's conjecture imply semisimplicity of crystalline Frobenius?

Does the Manin-Drinfeld theorem hold over number fields?

Can one compare integral structures on de Rham and crystalline cohomology?

Shimura varieties and connected components

Jacquet's approach to Rankin--Selberg L-functions

Is the smallest primitive root modulo p a primitive root modulo p^2?

P-adic L-functions of nonabelian twists of elliptic curves

Motivic cohomology and cohomology of Milnor K-theory sheaf

Are Kato's zeta elements integral?

Tensor products and two-sided faithful flatness

Does there exist a finite-index subgroup of SL2Z with all cusps irregular?

Roots of unity near 1 in Z / p Z

For a spherical pair $(G, H)$, which $G$-representations appear in $k[G/H]$?

P-stabilization of Siegel modular forms

Motivic cohomology and pushforward maps

Degeneration of etale Hochschild--Serre exact sequence

Atkin--Lehner operators in Hida theory

Periods and L-values of modular forms

Tamagawa numbers of crystalline Galois representations

When do the $\gamma$-filtration and codimension filtration of K-theory agree?

Is there a "universal" cohomology theory for varieties over p-adic fields?

Variant of Leopoldt's conjecture