65

Questions

4
4
votes
3
answers
861
views

The etale fundamental group of a field

apr 18 10 at 5:25 Torsten Ekedahl 18k14268

1
4
votes
0
answers
186
views

Primary decomposition for non-affine schemes

jul 7 10 at 15:58 Charles Staats 4,18912047

1
4
votes
2
answers
428
views

term for a “faithful” module

nov 30 10 at 3:58 Daniel Litt 8,25922549

3
4
votes
0
answers
467
views

Definition of formal schemes as formal direct limits

sep 13 10 at 18:55 Charles Staats 4,18912047

1
4
votes
4
answers
336
views

Lower bounds on the degrees of representatives of $u^n$ as $n \to \infty$

sep 19 10 at 4:40 Ed Formanek 30121

 
3
votes
1
answer
234
views

How does this notion compare to that of immersion?

mar 19 11 at 17:36 Charles Staats 4,18912047

2
3
votes
1
answer
408
views

In what generality is the natural map $\operatorname{Hom}_R(L,M)\otimes S\to\operatorname{Hom}_{R\otimes S}(L\otimes S,M\otimes S)$ an isomorphism?

aug 4 11 at 15:57 Hailong Dao 15.5k2971

1
2
votes
0
answers
423
views

An elementary proof of a criterion for $k$ sufficiently large that $M_k = \Gamma(\mathbb{P}^n, \widetilde{M}(k))$

aug 15 11 at 17:12 Charles Staats 4,18912047

2
2
votes
0
answers
148
views

Relationship between the notions of “excellent ring” and “universally catenary Nagata ring”

dec 1 11 at 19:37 Charles Staats 4,18912047

4
2
votes
4
answers
813
views

Subtle examples of morphisms that are finite but not flat

jan 18 12 at 4:41 Sándor Kovács 23.8k25373

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