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# Questions

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### Motivation for algebraic K-theory?

jun 14 11 at 14:25 Anil P 336

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### Is there a good way to think of vanishing cycles and nearby cycles?

nov 8 09 at 19:20 S. Carnahan 25.6k4190

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### Is there a nice proof of the fact that there are (p-1)/24 supersingular elliptic curves in characteristic p?

may 15 12 at 7:05 Dustin Clausen 3,98011626

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### Does there exist a family of curves (or abelian varieties) on the punctured line with specified monodromy on H^1?

mar 1 11 at 2:10 JSE 13.4k3383

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### How do I describe a fusion category given a subfactor?

nov 19 09 at 20:26 Scott Morrison 4,46042644

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### Is the tangent space functor from PD formal groups to Lie algebras an equivalence?

jun 21 10 at 19:16 Torsten Ekedahl 17.9k14268

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### How do I describe the GL_n torsor attached to a smooth morphism of relative dimension n?

jun 9 10 at 20:26 S. Carnahan 25.6k4190

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### Can we reconstruct positive weight invariants in algebraic topology using algebraic geometry?

mar 14 10 at 22:02 Ben Wieland 3,127421

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### Are associated bundles representable in schemes?

aug 6 11 at 15:50 Angelo 19.5k34775

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