Alex B.'s user avatar
Alex B.'s user avatar
Alex B.'s user avatar
Alex B.
  • Member for 13 years, 6 months
  • Last seen this week
61 votes

What notions are used but not clearly defined in modern mathematics?

47 votes
Accepted

Roots of permutations

45 votes
Accepted

Has Fermat's Last Theorem per se been used?

37 votes

Quick proofs of hard theorems

36 votes

Good ways to engage in mathematics outreach?

34 votes

Non-mathematician submitting to top maths journal?

26 votes
Accepted

Examples of elliptic curves over $\mathbb{Q}$

24 votes

When should a result be made into a paper?

21 votes
Accepted

Number fields with same zeta function?

19 votes
Accepted

how to compute Hilbert class field of $\Bbb Q(\zeta_{23})$?

19 votes
Accepted

How to picture $\mathbb{C}_p$?

17 votes
Accepted

Order of Ш (Sha)

16 votes

The modular arithmetic contradiction trick for Diophantine equations

16 votes
Accepted

Finite groups with integral character table

16 votes
Accepted

A finite group $G$ all of whose reps are defined over $\mathbb{Z}$ and yet $Rep(G)$ is not generated by permutation representations

16 votes
Accepted

Is there any conditions on a finite abelian group so that it cannot be class group of any number field?

16 votes
Accepted

Regulators of Number fields and Elliptic Curves

16 votes
Accepted

Computational algebra: where?

15 votes
Accepted

Z/48 and Moonshine Beyond the Monster

15 votes

Basic software libraries for numerical analysis using modern programming languages?

14 votes

Algebra with a certain abelian group as the multiplicative group

14 votes

Heuristics of Cohen-Lenstra-Martinet

14 votes
Accepted

Finite order elements of $\mathrm{GL}_d(\mathbb{Z})$ that are conjugate to powers of themselves

13 votes

Conjugacy classes of PGL(3,Z)

13 votes

Fermat's last theorem over larger fields

13 votes

Branching rule from symmetric group $S_{2n}$ to hyperoctahedral group $H_n$

13 votes
Accepted

Conjugacy for $p$-adic matrices of finite order

12 votes

An explicit computation in class field theory

12 votes

What is this subgroup of $\mathfrak S_{12}$?

12 votes

On a minimal algebraic number field which satisfies the principal ideal theorem

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