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UID:4982@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20231130T110000
DTEND;TZID=Europe/Paris:20231130T120000
DTSTAMP:20240524T072506Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-33-2/
SUMMARY: (...): G-Solid Rational Surfaces
DESCRIPTION:: A rational surface is a surface S such that there exists a bi
 rational map between S and the projective plane. Given a rational surface 
 S and a finite subgroup G of Aut(S)\, we are interested in determining whe
 ther or not there exists a G-equivariant birational map between S and a G-
 conic bundle. If not\, we say that S is G-solid. The Minimal Model Program
  for surfaces implies that it is enough to consider the case where S is a 
 smooth Del Pezzo surface. After introducing this formalism\, we will prese
 nt the full classification of pairs (G\,S) such that the surface S is G-so
 lid. This classification is motivated by the long lasting problem of class
 ifying the conjugacy classes of finite subgroups of the group of birationa
 l self maps of the projective space in dimension 2 and 3.
CATEGORIES:Séminaire,Géométrie et Topologie de Marseille
LOCATION:I2M Saint-Charles - Salle de séminaire\, Université Aix-Marseill
 e\, Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, Franc
 e
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Université Aix-Marseille\,
  Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, France;X
 -APPLE-RADIUS=100;X-TITLE=I2M Saint-Charles - Salle de séminaire:geo:0,0
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DTSTART:20231029T020000
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