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UID:news898@dmi.unibas.ch
DTSTAMP;TZID=Europe/Zurich:20190619T152715
DTSTART;TZID=Europe/Zurich:20190703T103000
SUMMARY:Seminar Algebra and Geometry: Stéphane Lamy (Université de Toulou
 se)
DESCRIPTION:The group of tame polynomial automorphisms of the n-dimensional
  complex affine space is the group generated by linear maps and polynomial
  transvections. I will describe an action of this group on a metric space 
 whose construction is inspired from the theory of affine Bruhat-Tits build
 ings. In dimension n = 3\, we show that this space is simply connected wit
 h non-positive curvature. This allows to get a description of the finite s
 ubgroups of the 3-dimensional tame group. (Joint work with P. Przytycki)
X-ALT-DESC:The group of tame polynomial automorphisms of the n-dimensional 
 complex affine space is the group generated by linear maps and polynomial 
 transvections. I will describe an action of this group on a metric space w
 hose construction is inspired from the theory of affine Bruhat-Tits buildi
 ngs. In dimension n = 3\, we show that this space is simply connected with
  non-positive curvature. This allows to get a description of the finite su
 bgroups of the 3-dimensional tame group. (Joint work with P. Przytycki) 
DTEND;TZID=Europe/Zurich:20190703T120000
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