Prof. Dr. Annette Werner, Universität Frankfurt, Vortrag: Drinfeld's half-spaces over finite fields

Thursday, 27.11.2014 16:30 im Raum M 5

Mathematik und Informatik

Abstract: A Bruhat-Tits building can be embedded in the Berkovich analytic space associated to the underlying group. This was used by Berkovich to determine the automorphism group of Drinfeld's non-archimedean upper half-spaces. In this talk we consider analogs of Drinfeld's upper half-spaces over finite fields. We show that their automorphism group is the group of automorphisms of the ambient projective space. This is a problem in birational geometry, which we solve with tools from non-archimedean analytic geometry and by considering a suitable spherical building.

Angelegt am Tuesday, 23.09.2014 15:25 von shupp_01
Geändert am Tuesday, 28.10.2014 10:57 von shupp_01
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