David Treumann

Member for 15 years, 2 months
Last seen more than 6 years ago

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Questions

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28

How do I compare the different notions of Fourier transform for sheaves?

Oct 28, 2009

28

Is there a geometric realization of $\mathbf{C}((t))$-varieties?

Dec 25, 2016

22

What is the relationship between integrable systems and toric degenerations?

Oct 23, 2009

20

Is the determinant of cohomology a TQFT?

Jun 9, 2016

18

Is there anything significant about GAP's SmallGroup(512,2045)?

May 18, 2017

Answers

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60

Homotopy groups of Lie groups

Dec 15, 2009

26

Topologically contractible algebraic varieties

Dec 2, 2009

10

Which R-algebras are the group ring of some group over a ring R?

Jan 31, 2010

8

What are the implications of torsion in H^2 for geometric quantization?

Apr 28, 2010

8

Topology on the space of constructible sheaves

Mar 19, 2016

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at.algebraic-topology

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lie-groups

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ag.algebraic-geometry

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gaga

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ra.rings-and-algebras

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+10

When are there enough projective sheaves on a space X?

+10

Homotopy groups of Lie groups

+10

What kind of line bundles have Chern class of Hodge type (2,0) or (0,2)?

+10

When does a quasicoherent sheaf vanish?

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