20

Answers
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13
Homotopy groups of Lie groups
5
Logic comment in Mumford’s Red Book
0
Do convolution and multiplication satisfy any nontrivial algebraic identities?
2
When are there enough projective sheaves on a space X?
1
(∞, 1)-categorical description of equivariant homotopy theory
1
What are the higher homotopy groups of Spec Z ?
4
D-modules supported on the nilpotent cone
8
Which R-algebras are the group ring of some group over a ring R?
17
Topologically contractible algebraic varieties
2
Making D-modules on affine varieties more explicit
3
Understanding the unreducedness of a subscheme supported on fixed points
1
Thom first isotopy lemma in o-minimal structures
6
Which commutative groups are the group of units of some field?
3
Hypercube decomposition of perverse sheaves
6
What are the implications of torsion in H^2 for geometric quantization?
3
How should I think about correspondences?
2
Equivariant Derived Categories via their properties.
1
Is there a theory of differential equations for smooth correspondences?
2
When is the derived category of representations of a finite poset equivalent to its opposite?
4
Over which schemes can there exist non-trivial G_a bundles?