Stringy motives and local fundamental groups of klt surface singularities in arbitrary characteristic

Abstract: In this talk, I will speak about an application of stringy motives to local fundamental groups of klt surface singularities. Xu proved that klt singularities in characteristic zero have finite local fundametal groups. I will explain how to prove that the same is true in arbitrary characteristic and in dimension two, which had been unknown in characteristics two and three. The key of the proof is to study the behavior of stringy motives under quasi-etale Galois covers of klt singularities. This is a joint work with Javier Carvajal-Rojas.

algebraic geometry

Audience: researchers in the topic

ZAG (Zoom Algebraic Geometry) seminar

Series comments: Description: ZAG seminar

The seminar takes place on Tuesdays and Thursdays via Zoom. Zoom passwords are given via mailing list on Fridays. To join the mailing list go to the website.

If you use a calendar system, you can see the individual seminars at bit.ly/zag-seminar-calendar

Times vary to accommodate speakers time zones but times will be announced in GMT time.