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SUMMARY:On del Pezzo fibrations in positive characteristic
DTSTART:20190313T140000
DTEND:20190313T150000
DTSTAMP:20260506T045005Z
UID:f57c166f3912f16992761521191d1135e39d0ef593ea420d67bb5054
CATEGORIES:Conferences - Seminars
DESCRIPTION:Fabio Bernasconi (Imperial College London)\nFibrations play a 
 key role in the classification problems of algebraic varieties. While in c
 haracteristic zero\, the general fibre of a morphism between smooth variet
 ies is still smooth\, this is no longer true in general over fields of pos
 itive characteristic (where the classical examples are quasi-elliptic fibr
 ations). However\, one can hope to bound such a bad behaviour to small pri
 mes if the generic fibre has special global properties. In this talk\, I w
 ill discuss a joint work with H. Tanaka where we study the special case of
  Mori fibrations in positive characteristic\, which constitute one of the 
 possible outcomes of the Minimal Model Program. Our results are a conseque
 nce of a detailed study of the possible pathologies appearing on log del P
 ezzo surfaces over imperfect fields.
LOCATION:MA A1 10 https://plan.epfl.ch/?room=MAA110
STATUS:CONFIRMED
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