User Kevin Buzzard

8 votes

Can the failure of the multiplicativity of Euler factors at bad primes be corrected?

answered Feb 9, 2010 at 17:32

8 votes

Accepted

Families of number fields of prime discriminant

answered Jan 4, 2010 at 22:05

8 votes

Why are functional equations important?

answered Oct 31, 2009 at 20:32

8 votes

Properties shared by number fields with the same normal closure?

answered May 2, 2010 at 21:04

8 votes

Proving that a map is a morphism

answered Dec 8, 2010 at 9:27

8 votes

Accepted

Classifying continuous characters $X \to \mathbb{Z}_p^$, $X=\mathbb{Z}_p^$ or $(1+p\mathbb{Z}_p)^{\times}$ ?

answered Apr 27, 2010 at 10:14

8 votes

Does there exist a general theory of "arithmetic complexity"/"arithmetic height"?

answered Mar 9, 2010 at 0:15

8 votes

The central role of varieties (a comment from Mumford's Red Book)

answered Feb 24, 2010 at 20:21

7 votes

Additive commutators and trace over a PID

answered Apr 18, 2010 at 17:43

7 votes

Accepted

M_2(k) as a central extension

answered Nov 19, 2010 at 7:50

7 votes

A very very good approximation to Ramanujan constant. Why?

answered Nov 9, 2009 at 17:17

7 votes

When two k-varieties with the same underlying topological spaces isomorphic?

answered Jan 23, 2010 at 22:02

7 votes

Accepted

Effective detection of CM modular forms

answered Sep 18, 2011 at 19:41

7 votes

An inequality for the Euler totient function

answered Jan 6, 2017 at 16:18

6 votes

Mid-Square with all bits set

answered Jan 15, 2017 at 20:27

6 votes

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Hilbert Symbols, Norms, and p-adic roots of unity

answered Jan 16, 2017 at 16:49

6 votes

Accepted

Zograf's bound on the index of a modular curve for Shimura curves

answered Feb 13, 2012 at 21:44

6 votes

Proof of no rational point on Selmer's Curve $3x^3+4y^3+5z^3=0$

answered Nov 20, 2009 at 18:59

6 votes

Accepted

Can different modules have the same symmetric algebra? (answered: no)

answered Nov 23, 2009 at 16:15

6 votes

Riemann surfaces: explicit algebraic equations

answered Dec 6, 2009 at 16:36

6 votes

Accepted

Finite dimensional automorphic representations of a definite quaternion with prime discriminant and Hecke action

answered Sep 26, 2010 at 17:17

6 votes

Automorphic form encoding the orders of $N$ modulo $p$.

answered Nov 24, 2010 at 22:05

6 votes

Are there primes p, q such that p^4+1 = 2q^2 ?

answered May 14, 2010 at 12:25

6 votes

Accepted

What is known about finite morphisms from X to the projective line

answered Apr 11, 2010 at 16:23

6 votes

On Polynomials dividing Exponentials

answered Feb 25, 2010 at 20:28

6 votes

Conductor of monomial forms with trivial nebentypus

answered Mar 9, 2010 at 10:26

6 votes

Accepted

Order of "one minus automorphism"

answered Mar 10, 2010 at 13:38

5 votes

Informal online seminars or reading groups via videoconferencing?

answered Mar 24, 2010 at 15:09

5 votes

Accepted

Fiddling with p-adics

answered Mar 6, 2010 at 22:46

5 votes

Infinite collection of elements of a number field with very similar annihilating polynomials

answered Mar 28, 2010 at 20:10

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218 Answers

Can the failure of the multiplicativity of Euler factors at bad primes be corrected?

Families of number fields of prime discriminant

Why are functional equations important?

Properties shared by number fields with the same normal closure?

Proving that a map is a morphism

Classifying continuous characters $X \to \mathbb{Z}_p^$, $X=\mathbb{Z}_p^$ or $(1+p\mathbb{Z}_p)^{\times}$ ?

Does there exist a general theory of "arithmetic complexity"/"arithmetic height"?

The central role of varieties (a comment from Mumford's Red Book)

Additive commutators and trace over a PID

M_2(k) as a central extension

A very very good approximation to Ramanujan constant. Why?

When two k-varieties with the same underlying topological spaces isomorphic?

Effective detection of CM modular forms

An inequality for the Euler totient function

Mid-Square with all bits set

Hilbert Symbols, Norms, and p-adic roots of unity

Zograf's bound on the index of a modular curve for Shimura curves

Proof of no rational point on Selmer's Curve $3x^3+4y^3+5z^3=0$

Can different modules have the same symmetric algebra? (answered: no)

Riemann surfaces: explicit algebraic equations

Finite dimensional automorphic representations of a definite quaternion with prime discriminant and Hecke action

Automorphic form encoding the orders of $N$ modulo $p$.

Are there primes p, q such that p^4+1 = 2q^2 ?

What is known about finite morphisms from X to the projective line

On Polynomials dividing Exponentials

Conductor of monomial forms with trivial nebentypus

Order of "one minus automorphism"

Informal online seminars or reading groups via videoconferencing?

Fiddling with p-adics

Infinite collection of elements of a number field with very similar annihilating polynomials