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Donu Arapura
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267
Answers
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52
introductory book on spectral sequences
Apr 22 '10 at 18:36
46
Vanishing cycles in a nutshell?
Feb 20 '11 at 19:14
33
How has modern algebraic geometry affected other areas of math?
Oct 5 '11 at 9:26
31
Ways to prove the fundamental theorem of algebra
May 17 '10 at 11:01
26
Non-compact complex surfaces which are not Kähler
Feb 20 '12 at 14:30
24
What does the Lefschetz principle (in algebraic geometry) mean exactly?
Mar 8 '12 at 18:57
24
What is the Zariski topology good/bad for?
Apr 16 '10 at 12:37
21
Where am I suppose to actually learn how to compute hypercohomology?
Jul 12 at 22:24
21
Gabber's original proof of his purity theorem
Feb 16 at 11:28
21
Work of plenary speakers at ICM 2014
Oct 18 '13 at 18:54
21
What is the inverse image sheaf necessary for in algebraic geometry?
Sep 30 '10 at 16:23
21
Work of ICM 2010 plenary speakers (and other humans)
Aug 6 '10 at 14:41
21
Proving Hodge decomposition without using the theory of elliptic operators?
Jun 17 '10 at 18:19
21
Why are local systems and representations of the fundamental group equivalent
Mar 11 '10 at 1:41
19
Any algebraic substitute for Morse theory (and homology) in arbitrary characteristic?
Oct 9 '12 at 12:30
19
A nice explanation of what is a smooth (l-adic) sheaf?
Jul 20 '10 at 23:57
18
what mistakes did the Italian algebraic geometers actually make?
Mar 26 '10 at 13:59
18
equivalence of Grothendieck-style versus Cech-style sheaf cohomology
Mar 18 '10 at 22:26
17
Quillen's motivation of higher algebraic K-theory
Mar 31 '14 at 20:36
17
What does the Jacobian of a curve tell us about the curve?
Aug 11 '13 at 1:57
17
What is the current state of the mathematics of Higgs fields?
Jul 4 '12 at 22:22
17
Motivating the de Rham theorem
Oct 27 '10 at 15:56
17
Computing fundamental groups and singular cohomology of projective varieties
Feb 21 '10 at 14:59
16
For which varieties is the natural map from the Chow ring to integral cohomology an isomorphism?
Dec 10 '13 at 7:18
16
Is there an explicit example of a coefficient sheaf for which hard Lefschetz fails?
Aug 5 '12 at 10:53
16
Heuristics for the Hodge Conjecture
Jul 2 '12 at 15:01
16
de Rham vs Dolbeault Cohomology
Apr 28 '12 at 12:08
16
Sheaf cohomology question
Jun 24 '10 at 14:26
16
Geometric interpretation of the fundamental groupoid
Jun 8 '10 at 18:02
15
Are “ample” and “positive” line bundle the same concept?
May 18 '14 at 6:33
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