Henri Johnston's user avatar
Henri Johnston's user avatar
Henri Johnston's user avatar
Henri Johnston
  • Member for 13 years, 8 months
  • Last seen this week
11 votes

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

9 votes
Accepted

number of galois extensions of local fields of fixed degree

9 votes

Where are mathematics jobs advertised if not on mathjobs (e.g. in Europe and elsewhere)?

8 votes
Accepted

How to distinguish division algebras from matrix algebras?

6 votes

LaTeX tricks that save time in typesetting

6 votes

Introductory reading on the Scholz reflection principle?

5 votes
Accepted

Looking for criterion for $\mathbb{Z}G$-modules to be projective

5 votes

How does the work of a pure mathematician impact society?

5 votes

Taking lecture notes in lectures

5 votes

Reference for behavior of Artin $L$-functions at $\Re(s) = 1$

5 votes

LaTeX tricks that save time in typesetting

3 votes
Accepted

Galois module theory: from global to local

3 votes

References for Hopf Galois module theory

2 votes

Tables of class numbers of cyclotomic fields

2 votes

A catalog of faithful representations of finite groups?

1 vote

Cancellation property for certain integral group rings

1 vote
Accepted

Vanishing of certain $\mu$-invariants attached to abelian extensions of imaginary quadratic fields

1 vote

Iterated semi-direct products

0 votes

How hard is it to find the first layer of this basic $\mathbb{Z}_p$-extension?