David Treumann's user avatar
David Treumann's user avatar
David Treumann's user avatar
David Treumann
  • Member for 14 years, 5 months
  • Last seen more than 5 years ago
58 votes

Homotopy groups of Lie groups

26 votes
Accepted

Topologically contractible algebraic varieties

10 votes

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

8 votes
Accepted

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

8 votes

Topology on the space of constructible sheaves

7 votes
Accepted

Calculating Mayer-Vietoris efficiently

7 votes

Which commutative groups are the group of units of some field?

6 votes
Accepted

D-modules supported on the nilpotent cone

6 votes

When are there enough projective sheaves on a space X?

5 votes
Accepted

Over which schemes can there exist non-trivial G_a bundles?

5 votes

Logic comment in Mumford's Red Book

3 votes
Accepted

Hypercube decomposition of perverse sheaves

3 votes

How should I think about correspondences?

3 votes

Understanding the unreducedness of a subscheme supported on fixed points

2 votes

When is the derived category of representations of a finite poset equivalent to its opposite?

2 votes

Is there a theory of differential equations for smooth correspondences?

2 votes

Equivariant Derived Categories via their properties.

2 votes

Making D-modules on affine varieties more explicit

2 votes

What are the higher homotopy groups of Spec Z ?

1 vote

Thom first isotopy lemma in o-minimal structures

1 vote

(∞, 1)-categorical description of equivariant homotopy theory

0 votes

Do convolution and multiplication satisfy any nontrivial algebraic identities?