Abstract: I will explain how tropical degenerations and motivic integration techniques can be used in rationality problems. In particular, I will show that generic quartic fivefolds, as well as many other complete intersections in projective space, are stably irrational. This is joint work with Johannes Nicaise.
John Christian Ottem (UiO): Irrationality of the generic quartic fivefold
![](https://www.mn.uio.no/math/english/research/groups/algebra/events/seminars/2020/q2-copy.jpg)
Published Apr. 4, 2020 8:54 PM
- Last modified Apr. 7, 2020 12:11 AM