138

Questions

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14
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Any algebraic substitute for Morse theory (and homology) in arbitrary characteristic?

oct 10 at 11:42 Donu Arapura 13.7k12863

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12
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9
answers
2k
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‘Important’ applications of p-adic numbers outside of algebra (and number theory).

dec 27 11 at 18:01 Sean Tilson 2,362924

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12
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1
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439
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What is the purpose of section 3 of BBD?

apr 12 at 2:12 S. Carnahan 25.6k4190

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10
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1
answer
318
views

Can there exist Chow motives/motivic cohomology for compact Kähler manifolds?

nov 3 at 19:19 Mikhail Bondarko 5,8761421

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10
votes
1
answer
497
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Motivic cohomology vs. K-theory for singular varieties

sep 23 at 18:16 Thomas Geisser 47145

1
10
votes
1
answer
522
views

Bad behaviour of perverse sheaves over ‘general’ bases?

oct 30 11 at 23:37 Alex 1,32466

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9
votes
3
answers
822
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Derived categories of (coherent) sheaves of modules: exceptional images, gluing, and proper descent?

may 28 11 at 9:05 Chris Brav 1,20939

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8
votes
1
answer
513
views

Are two conjectural descriptions of the motivic t-structure (via cohomology and via affine varieties) known to be equivalent?

jan 27 11 at 17:08 Alex 1,32466

6
8
votes
2
answers
379
views

Does a triangulated category that possesses a subcategory $B$ of generators with no extensions of non-zero degree between them have to be isomorphic to $K^b(B)$?

feb 6 11 at 19:35 Fernando Muro 5,1691915

 
8
votes
2
answers
305
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Can one ignore primes lying over $l$ in the Fontaine-Mazur conjecture? Counterexamples?

oct 22 at 1:22 Joël 9,4991952

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