User Alex B.

11 votes

When is Inn(X) simple?

answered Nov 22, 2010 at 14:29

11 votes

Accepted

Torsion in GL_n(Z)

answered Oct 6, 2010 at 16:14

11 votes

Which journals publish 1-page papers

answered Sep 23, 2010 at 5:58

11 votes

A sum involving derivatives of Vandermonde

answered Oct 19, 2011 at 8:29

10 votes

Accepted

For which finite groups $G$ is every character a virtual permutation character?

answered May 9, 2019 at 15:03

10 votes

How to compute Hilbert class field of $\Bbb Q(\zeta_{31})$?

answered Jan 1, 2021 at 15:14

10 votes

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Twin primes for polynomials in $\Bbb Z[X]$

answered Nov 27, 2014 at 12:41

10 votes

Accepted

p-adic representations of groups

answered Sep 6, 2012 at 21:17

10 votes

Accepted

Generalizations/applications of a formula for the Dedekind zeta function?

answered Mar 30, 2012 at 5:17

9 votes

Accepted

How to construct groups and large dimension representations? How about faithful ones?

answered Feb 13, 2019 at 0:33

9 votes

Does a curve have infinitely many $K$-rational points under these hypotheses?

answered Oct 31, 2011 at 2:35

9 votes

Accepted

A remark of Mordell alluding to a local/global principle for cubic Diophantine equations

answered Apr 4, 2011 at 12:40

9 votes

Commutator subgroup of $\Gamma(2).$

answered Jan 10, 2011 at 5:16

9 votes

Freshman's definition of sin(x)?

answered Sep 27, 2010 at 16:58

9 votes

Accepted

Constructing inequivalent irreps of finite groups

answered Nov 10, 2010 at 16:06

9 votes

Strategies for digging through literature

answered Nov 18, 2010 at 0:34

8 votes

Undecidability in Conway's Game of Life

answered Nov 9, 2010 at 0:05

8 votes

Accepted

lower bound on Aut(G)

answered Feb 8, 2011 at 13:07

8 votes

How do Brauer groups relate to zeta functions?

answered Oct 31, 2011 at 5:29

8 votes

Galois embedding question for dihedral groups

answered Jul 14, 2020 at 8:46

8 votes

Accepted

Irreducible representations of product of profinite groups

answered Jul 15, 2021 at 13:16

8 votes

Accepted

Modular representations with unequal characteristic - reference request

answered May 16, 2012 at 10:20

8 votes

Accepted

What is the ring $A_{\Gamma}$ in the Cohen-Lenstra Heuristics?

answered Oct 15, 2014 at 8:24

7 votes

Must a finitely generated projective module over a group ring with vanishing coinvariants be trivial?

answered Jul 23, 2015 at 17:10

7 votes

Accepted

Does the unit index divide the degree of an extension of number fields?

answered May 18, 2017 at 17:03

7 votes

Accepted

Analogue of j-invariant for CM fields

answered May 18, 2017 at 18:34

7 votes

Accepted

Does the equality of ranks imply equality of analytic ranks?

answered Jun 14, 2012 at 6:43

7 votes

What is the possible usefulness of étale topology and cohomology apart from the resolution of the Weil conjecture ?

answered Mar 29, 2012 at 3:30

7 votes

Accepted

Uncertainty principle on finite groups

answered Jun 13, 2013 at 17:15

7 votes

What evidence is there that $\mathbb{Q}^{ab}$ is ample?

answered Jun 25, 2013 at 9:13

Stack Exchange Network

140 Answers

When is Inn(X) simple?

Torsion in GL_n(Z)

Which journals publish 1-page papers

A sum involving derivatives of Vandermonde

For which finite groups $G$ is every character a virtual permutation character?

How to compute Hilbert class field of $\Bbb Q(\zeta_{31})$?

Twin primes for polynomials in $\Bbb Z[X]$

p-adic representations of groups

Generalizations/applications of a formula for the Dedekind zeta function?

How to construct groups and large dimension representations? How about faithful ones?

Does a curve have infinitely many $K$-rational points under these hypotheses?

A remark of Mordell alluding to a local/global principle for cubic Diophantine equations

Commutator subgroup of $\Gamma(2).$

Freshman's definition of sin(x)?

Constructing inequivalent irreps of finite groups

Strategies for digging through literature

Undecidability in Conway's Game of Life

lower bound on Aut(G)

How do Brauer groups relate to zeta functions?

Galois embedding question for dihedral groups

Irreducible representations of product of profinite groups

Modular representations with unequal characteristic - reference request

What is the ring $A_{\Gamma}$ in the Cohen-Lenstra Heuristics?

Must a finitely generated projective module over a group ring with vanishing coinvariants be trivial?

Does the unit index divide the degree of an extension of number fields?

Analogue of j-invariant for CM fields

Does the equality of ranks imply equality of analytic ranks?

What is the possible usefulness of étale topology and cohomology apart from the resolution of the Weil conjecture ?

Uncertainty principle on finite groups

What evidence is there that $\mathbb{Q}^{ab}$ is ample?