The Oberseminar in SoSe 22 is about the article
Projectivity of the Witt vector affine Grasmannian by Bhatt and Scholze.
Here is the program .
The seminar takes place on Wednesdays 10:15 - 11:45 in room G.13.18(BUW).
| Talk | Day | Speaker |
|---|---|---|
| 1. Introduction and discussion | 06.04.22 | Kay |
| 2. h-sheaves and v-sheaves, I | 13.04.22 | Fei |
| 3. h-sheaves and v-sheaves, II | 20.04.22 | Yingying |
| 4. Perfect schemes and the perfection of an \(\mathbb{F}_p\)-scheme | 27.04.22 | Dennis |
| 5. Base change and h-descent for vector bundles on perfect schemes | 04.05.22 | Mattia |
| 6. Geometric fiber criterion for the vanishing of higher direct images of the structure sheaf under proper perfectly finitely presented maps | 11.05.22 | Christoph |
| 7. A geometric fiber criterion for descending vector bundles under perfectly finitely presented maps. | 18.05.22 | Raju |
| 8. Finitely generated \(p\)-torsion \(W(R)\)-modules | 25.05.22 | Julian |
| 9. Closedness of the locus where the cokernel of an isogeny has type \(\le \lambda\) and the Demazure scheme | 01.06.22 | Georg |
| 10. The Witt vector affine Grassmannian and the construction of \(\mathcal{L}\) | 15.06.22 | Grétar |
| 11. Keel's semi-ampleness criterion. | 22.06.22 | Sascha |
| 12. No talk | 29.06.22 | |
| 13. Proof of the Main Theorem: \(\mathcal{L}\) is ample. | 06.07.22 | Kay |
| 14. No talk | 13.07.22 |