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SUMMARY:Sami Douba (IHES)
DTSTART:20241107T133000Z
DTEND:20241107T143000Z
DTSTAMP:20260423T021056Z
UID:GaTO/109
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/109/">Z
 ariski closures of linear reflection groups</a>\nby Sami Douba (IHES) as p
 art of Geometry and topology online\n\nLecture held in Room B3.02 in the Z
 eeman Building\, University of Warwick.\n\nAbstract\nWe show that linear r
 eflection groups in the sense of Vinberg are often Zariski dense in \\(\\m
 athrm{PGL}(n)\\). Among the applications are examples of low-dimensional c
 losed hyperbolic manifolds whose fundamental groups virtually embed as Zar
 iski-dense subgroups of \\(\\mathrm{SL}(n\,\\mathbb{Z})\\)\, as well as so
 me one-ended Zariski-dense subgroups of \\(\\mathrm{SL}(n\,\\mathbb{Z})\\)
  that are finitely generated but infinitely presented\, for all sufficient
 ly large \\(n\\). \n\nThis is joint work with Jacques Audibert\, Gye-Seon 
 Lee\, and Ludovic Marquis.\n
LOCATION:https://researchseminars.org/talk/GaTO/109/
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