H. Hasson's user avatar
H. Hasson's user avatar
H. Hasson's user avatar
H. Hasson
  • Member for 14 years, 4 months
  • Last seen more than 2 years ago
  • Palo Alto, CA
23 votes
5 answers
6k views

Wild Ramification

21 votes
3 answers
2k views

Surprising Analogue of Q

18 votes
1 answer
1k views

A Galois Theory Computation

17 votes
1 answer
1k views

Does there exist a number field, unramified over a predetermined finite set of primes of Q, such that the inverse regular Galois problem is correct for that number field?

12 votes
2 answers
536 views

Realizing D_8 as a Galois group over C(x) with prescribed decomposition groups

12 votes
2 answers
2k views

What, precisely, is the relationship between "fields of moduli" and "moduli spaces"?

7 votes
1 answer
260 views

For a given finite group G, is there a cover of P^1 over Q s.t. over C it's G-Galois?

7 votes
1 answer
440 views

Computing stable reduction of finite covers of curves in practice

6 votes
3 answers
2k views

Is every flat unramified cover of quasi-projective curves profinite?

5 votes
1 answer
493 views

Field of Definition of a Meromorphic Function

4 votes
2 answers
335 views

Methods of showing a map has integral or good reduction

4 votes
1 answer
897 views

SGA1 Chapter XIII (tamely ramified sheaves)

3 votes
1 answer
525 views

A computation of ramification

3 votes
0 answers
243 views

Inverse limits of finite unramified covers, and the need for formally unramified covers