User Alex B.

3 votes

Accepted

Galois descent for K-groups (or for étale cohomology groups)

answered May 9, 2011 at 11:02

3 votes

Elliptic curves over finite fields

answered Oct 29, 2010 at 8:33

3 votes

Why is every quadratic subfield of a Galois extension of the rationals with the quaternions as Galois group real?

answered Sep 16, 2010 at 10:18

2 votes

Integral models of p-adic representations

answered Oct 11, 2010 at 0:58

2 votes

local-global principles in group cohomology

answered Nov 20, 2010 at 5:33

2 votes

Is any continuous Galois-representation a direct summand of a permutative one?

answered Nov 24, 2010 at 0:41

2 votes

Functions which form continuous curve with its own iterations

answered Dec 1, 2010 at 5:24

2 votes

Brauer group of complete DVR

answered Oct 19, 2011 at 1:29

2 votes

Rank of jacobians of twists of hyperelliptic curves of genus one

answered Dec 31, 2020 at 15:51

2 votes

Finding all real representations of $\mathrm{SL}_n(\mathbb{F}_q)$

answered Nov 7, 2019 at 11:05

2 votes

Accepted

Cassels Pairing for Fine Selmer groups

answered Mar 30, 2019 at 12:15

2 votes

Permutation characters and regular orbits

answered May 12, 2012 at 6:25

1 vote

Function with range equal to whole reals on every open set

answered Nov 2, 2014 at 19:00

1 vote

Schur index of a representation and its divisors

answered May 3, 2019 at 22:52

1 vote

Accepted

Lower bound for $[ H : H \cap xHx^{-1} ]$

answered Feb 23, 2020 at 20:21

1 vote

Reference for fact about reduction mod $p$ of a representation of a finite group

answered Jun 28, 2021 at 23:55

1 vote

Conjugacy for p-adic matrices of finite order II

answered Aug 11, 2011 at 17:19

1 vote

Positive integers $n$ that divide $\sigma_2(n)$

answered Jan 12, 2011 at 3:09

1 vote

What is etale descent?

answered Sep 25, 2010 at 9:31

1 vote

Congruences mod primes in Galois extensions

answered Oct 5, 2010 at 4:15

Stack Exchange Network

140 Answers

Galois descent for K-groups (or for étale cohomology groups)

Elliptic curves over finite fields

Why is every quadratic subfield of a Galois extension of the rationals with the quaternions as Galois group real?

Integral models of p-adic representations

local-global principles in group cohomology

Is any continuous Galois-representation a direct summand of a permutative one?

Functions which form continuous curve with its own iterations

Brauer group of complete DVR

Rank of jacobians of twists of hyperelliptic curves of genus one

Finding all real representations of $\mathrm{SL}_n(\mathbb{F}_q)$

Cassels Pairing for Fine Selmer groups

Permutation characters and regular orbits

Function with range equal to whole reals on every open set

Schur index of a representation and its divisors

Lower bound for $[ H : H \cap xHx^{-1} ]$

Reference for fact about reduction mod $p$ of a representation of a finite group

Conjugacy for p-adic matrices of finite order II

Positive integers $n$ that divide $\sigma_2(n)$

What is etale descent?

Congruences mod primes in Galois extensions