89

Questions

1
3
votes
4
answers
668
views

Motivation for coherence axioms

oct 19 09 at 1:17 Reid Barton 14.5k12986

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3
votes
1
answer
349
views

Do coequalizers in RingSpc automatically lead to descent?

sep 7 10 at 19:05 BCnrd 4,15613858

 
3
votes
3
answers
658
views

Is the normalization map bijective?

oct 4 10 at 1:42 Karl Schwede 11.7k11435

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2
votes
0
answers
168
views

Proving that the higher direct images of quasi-compact, quasi-separated morphisms preserve quasi-coherence

nov 8 10 at 20:59 Akhil Mathew 12.1k22989

 
2
votes
1
answer
305
views

Does unramified + radicial imply that a morphism is an immersion?

jan 19 11 at 13:37 Angelo 19.8k34775

 
2
votes
3
answers
311
views

How do we know that a map $f: U \to Y$ extends to $\bar{U}$?

nov 19 09 at 2:59 David Speyer 56.3k3103242

 
2
votes
2
answers
128
views

Algebraic structures at hypernatural parameters

mar 4 10 at 13:32 Joel David Hamkins 76.8k8192355

1
2
votes
1
answer
244
views

$\mathbb{Z}/2$-action on spectra given by inversion

sep 29 at 19:58 Tyler Lawson 19k34793

1
1
vote
0
answers
367
views

Proof of local structure theory for unramified morphisms [closed]

jan 2 11 at 22:13 Qing Liu 8,5951726

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