4

# Questions

5
1
608
views

### When is the K-theory presheaf a sheaf?

dec 25 10 at 21:02 David Ben-Zvi 12.6k12850

5
1
310
views

### Can Deligne-Mumford stacks be characterized by their restriction to a small subcategory?

oct 9 10 at 8:32 Jon Skowera 27117

3
2
299
views

### Projective line as a quotient by a torus

jul 10 at 13:43 Will Sawin 18.6k12448

4