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Department of Mathematics,
Department of Mathematics,
University of California San Diego
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Math 208: Seminar in Algebraic Geometry
Dr. Iacopo Brivio
Harvard University
Lifting F-split surfaces to characteristic zero
Abstract:
A folklore conjecture predicts that projective globally F-split varieties admit a lift to the ring of Witt vectors. In a joint work with Bernasconi, Kawakami and Witaszek, we proved that in dimension 2 something stronger holds: the lift can be chosen to be equi-singular. In this talk I will give an outline of this result and its proof as well as explain some of its applications to the study of singular surfaces in positive characteristic.
Host: James McKernan
May 15, 2026
4:00 PM
APM 7321
Research Areas
Algebraic Geometry****************************
