Wednesday December 6th, 2023 | |
| Time: | 4:00 PM - 5:30 PM |
| Title: | Complexes of stable birational invariants |
| Speaker: | James Hotchkiss, Columbia University |
| Location: | Math P-131 |
| Abstract: | |
| In the study of the rationality problem, a common situation is that one has a smooth variety degenerating to a singular one, and one wishes to find computable invariants of the special fiber which obstruct the rationality of the general fiber. I will explain a general procedure for constructing such invariants. As an application, A^1-connectedness specializes in smooth families. Joint with David Stapleton. | |