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SUMMARY:Shunsuki Takagi (University of Tokyo)
DTSTART:20210122T010000Z
DTEND:20210122T023000Z
DTSTAMP:20260423T021432Z
UID:FOTR/34
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/FOTR/34/">Ar
 ithmetic deformations of F-singularities</a>\nby Shunsuki Takagi (Universi
 ty of Tokyo) as part of Fellowship of the Ring\n\n\nAbstract\nF-singularit
 ies are singularities in positive characteristic defined via the Frobenius
  map. In the first half of the talk\, I will survey a connection between F
 -singularities and singularities in complex birational geometry. In the se
 cond half of the talk\, I will present a new application of Ma-Schwede’s
  theory of singularities in mixed characteristic. They proved that a Q-Gor
 enstein affine domain over a field of characteristic zero has log terminal
  singularities if its mod p reduction is F-regular for one single prime p.
  I will discuss the analog of their result for log canonical singularities
 . This talk is based on joint work with Kenta Sato.\n
LOCATION:https://researchseminars.org/talk/FOTR/34/
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