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SUMMARY:Daniel Bragg (University of California\, Berkeley)
DTSTART:20220308T170000Z
DTEND:20220308T180000Z
DTSTAMP:20260423T021217Z
UID:ZAG/191
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ZAG/191/">Co
 mpact supersingular twistor spaces</a>\nby Daniel Bragg (University of Cal
 ifornia\, Berkeley) as part of ZAG (Zoom Algebraic Geometry) seminar\n\n\n
 Abstract\nSupersingular twistor spaces are certain families of K3 surfaces
  over A^1 associated to a supersingular K3 surface. We will describe a geo
 metric construction that produces families of K3 surfaces over P^1 which c
 ompactify supersingular twistor spaces. The key input is a construction re
 lating Brauer classes of order p on a scheme of characteristic p to certai
 n sheaves of twisted differential operators. We will give some results on 
 the geometry of compactified supersingular twistor spaces\, and some appli
 cations.\n
LOCATION:https://researchseminars.org/talk/ZAG/191/
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