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TZID:Europe/Paris
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BEGIN:VEVENT
UID:8973@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20260604T110000
DTEND;TZID=Europe/Paris:20260604T120000
DTSTAMP:20260528T125925Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-285/
SUMMARY:Kemo Morvan (Paris): Singularities admitting contracting automorphi
 sms.
DESCRIPTION:Kemo Morvan: In this talk\, we are interested in the group Aut(
 X\,0) of automorphisms of the germ (X\,0) of a complex analytic space. We 
 show that Aut(X\,0) contains a contracting automorphism if and only if the
  singularity (X\,0) is quasi-homogeneous. This extends previous results by
  Favre and Ruggiero for the normal surface case\, as well as the recent re
 sults by Ornea and Verbitsky for the isolated singularity case. Our proof 
 relies on embeddings and normal forms techniques.
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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TZID:Europe/Paris
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DTSTART:20260329T030000
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