89

Questions

66
42
votes
13
answers
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A learning roadmap for algebraic geometry

oct 18 11 at 14:12 Andreas Holmstrom 2,82511228

14
36
votes
5
answers
3k
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Does anyone know a polynomial whose lack of roots can’t be proved?

nov 27 11 at 5:47 Vladimir Reshetnikov 1,4091022

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35
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5
answers
4k
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Why are spectral sequences so ubiquitous?

oct 16 10 at 8:50 Greg Kuperberg 36.3k2117179

26
33
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5
answers
3k
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Is there a high-concept explanation for why “simplicial” leads to “homotopy-theoretic”?

mar 20 11 at 18:35 Jonathan Chiche 1,4111716

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27
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4
answers
3k
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Do we still need model categories?

dec 25 11 at 23:53 Ronnie Brown 5,2871920

13
26
votes
1
answer
669
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What do loop groups and von Neumann algebras have to do with elliptic cohomology?

jul 6 at 19:00 André Henriques 14.9k23083

11
24
votes
2
answers
1k
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Are spectra really the same as cohomology theories?

jan 1 at 7:37 Tom Goodwillie 26.8k260110

4
22
votes
2
answers
985
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The category of l-adic sheaves

apr 9 12 at 21:07 Alex 1,32466

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22
votes
4
answers
1k
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What is the opposite category of the category of modules (or Hopf algebra representations)?

sep 25 10 at 21:38 Peter Arndt 6,8881842

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19
votes
4
answers
1k
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Grothendieck’s Galois theory without finiteness hypotheses

jun 25 at 17:58 Eduardo Dubuc 20114

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