Zoom link:  https://princeton.zoom.us/j/91248028438

Password: Number of plane conics tangent to five general plane conics.

In this talk, I will explain a mixed characteristic analogue of global F-regularity and how it can be used to establish the Minimal Model Program for threefolds in mixed characteristic.

This is based on a joint work with Bhargav Bhatt, Linquan Ma, Zsolt Patakfalvi, Karl Schwede, Kevin Tucker, and Joe Waldron.