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BEGIN:VEVENT
UID:news1921@dmi.unibas.ch
DTSTAMP;TZID=Europe/Zurich:20251012T193216
DTSTART;TZID=Europe/Zurich:20251014T103000
SUMMARY:Seminar Algebra and Geometry: Antoine Pinardin (Universität Basel)
DESCRIPTION:We will recall how the classification of the subgroups of Cremo
 na up to conjugation relies on the study of groups of symmetries of ration
 al varieties and equivariant birational equivalence. Two questions current
 ly have a particular interest for researchers. A subgroup G of Cremona is 
 linearizableif it is conjugated to a group of Automorphisms of the project
 ive space. It is solid if\, after regularization and G-MMP\, it can only a
 ct on a Fano variety with invariant class group of rank one.\\r\\nWe will 
 give the complete answer to both questions in dimension 2. The answer for 
 linearizability is a joint work with A.Sarikyan and E.Yasinsky.
X-ALT-DESC:<p>We will recall how the classification of the subgroups of Cre
 mona up to conjugation relies on the study of groups of symmetries of rati
 onal varieties and equivariant birational equivalence. Two questions curre
 ntly have a particular interest for researchers. A subgroup G of Cremona i
 s linearizableif it is conjugated to a group of Automorphisms of the proje
 ctive space. It is solid if\, after regularization and G-MMP\, it can only
  act on a Fano variety with invariant class group of rank one.</p>\n<p>We 
 will give the complete answer to both questions in dimension 2. The answer
  for linearizability is a joint work with A.Sarikyan and E.Yasinsky.</p>
DTEND;TZID=Europe/Zurich:20251014T120000
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