Talk page

Title:
Fano hypersurfaces with no finite order birational automorphisms

Speaker:
Lena Ji

Abstract:
The birational automorphism group is a natural birational invariant associated to an algebraic variety. In this talk, we study the specialization homomorphism for the birational automorphism group. As an application, building on work of Kollár and work of Chen–Stapleton, we show that a very general n-dimensional complex hypersurface X of degree ≥ 5⌈(n+3)/6⌉ has no finite order birational automorphisms. This work is joint with Nathan Chen and David Stapleton.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=5912

Workshop:
Simons- Workshop: Simons Foundation: Higher Dimensional Geometry