Specialization of (stable) rationality in families with mild singularities
Date:
Thursday, May 2, 2019 13:30 - 15:30
Speaker:
Johannes Nicaise (Imperial)
Location:
Big Seminar room Ground floor / Office Bldg West (I21.EG.101)
Series:
Mathematics and CS Seminar
Host:
Tim Browning
Contact:
MARR Lena
I will present joint work with Evgeny Shinder, where we use Denef and Loesers motivic nearby fiber and a theorem by Larsen and Lunts to prove that stable rationality specializes in families with mild singularities. I will also discuss an improvement of our results by Kontsevich and Tschinkel, who defined a birational version of the motivic nearby fiber to prove specialization of rationality.