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UID:8609@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20250312T103000
DTEND;TZID=Europe/Paris:20250312T120000
DTSTAMP:20250307T083516Z
URL:https://www.i2m.univ-amu.fr/evenements/the-witt-ring-of-a-field/
SUMMARY:Samuel Lerbet (Université Grenoble Alpes\, Institut Fourier): The 
 Witt ring of a field.
DESCRIPTION:Samuel Lerbet: The Witt ring of a field F is an invariant that 
 essentially classifies symmetric bilinear forms over F. Its functoriality 
 is useful to attack arithmetic questions over number fields by comparing t
 heir Witt ring to those of their completions\, in the spirit of the Hasse 
 principle. In this talk\, we propose to define the Witt ring and describe 
 its basic properties\, focusing on the case of ordered fields which is rel
 evant to geometric aspects of theory of symmetric bilinear forms.
CATEGORIES:Séminaire,Doctorant⋅es de l'I2M
LOCATION:Saint-Charles - FRUMAM  (2ème étage)\, 3 Place Victor Hugo\, Mar
 seille\, 13003\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=3 Place Victor Hugo\, Marse
 ille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=Saint-Charles - FRUMAM  (
 2ème étage):geo:0,0
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DTSTART:20241027T020000
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