| Speaker: | Pawel Sosna (Hamburg) |
|---|---|
| Title: | Construction of (quasi-)phantom categories on some surfaces of general type |
| Date (JST): | Mon, Nov 05, 2012, 14:00 - 17:00 |
| Place: | Seminar Room A |
| Abstract: |
I will report on the construction of non-full exceptional collections of maximal length 11 on the Barlow and the classical Godeaux surface. The (left or right) orthogonal complement of such a collection gives an example of a category with trivial Hochschild homology and trivial (Barlow case) respectively torsion (Godeaux case) Grothendieck group. The former is called a phantom and the latter a quasi-phantom. This is joint work with Christian Boehning, Hans-Christian Graf von Bothmer and Ludmil Katzarkov. |
| Remarks: | Break 15:00-15:30 |
