# On (2,3)-fourfolds

### John Christian Ottem (University of Oslo)

Fri Jul 10, 19:00-20:00 (5 weeks ago)

Abstract: I will explain how tropical degenerations and birational specialization techniques can be used in rationality problems. In particular, I will apply these techniques to study quartic fivefolds and complete intersections of a quadric and a cubic in $\mathbb{P}^6$. This is joint work with Johannes Nicaise.

algebraic geometry

Audience: researchers in the topic

( slides | video )

Comments: The discussion for John Ottem’s talk is taking place not in zoom-chat, but at tinyurl.com/2020-07-10-jco (and will be deleted after 3-7 days).

Series comments: Seminar time varies somewhat in summer 2020, as we figure out a steadystate.