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SUMMARY:Ruth Charney (Brandeis)
DTSTART:20201210T150000Z
DTEND:20201210T153000Z
DTSTAMP:20260423T003257Z
UID:GaTO/39
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/39/">Ou
 ter space for right-angled Artin groups</a>\nby Ruth Charney (Brandeis) as
  part of Geometry and topology online\n\n\nAbstract\n<p>\n        Right-an
 gled Artin groups (RAAGs) span a\n        range of groups from free groups
  to free abelian groups.\n	Thus\, their (outer) automorphism groups range 
 from \\(\\Out(F_n)\\) to\n        \\(\\GL(n\,\\ZZ)\\).  Automorphism group
 s of RAAGs have been well-studied\n        over the past decade from a pur
 ely algebraic viewpoint.  To\n        allow for a more geometric approach\
 , one needs to construct a\n        contractible space with a proper actio
 n of the group.\n      </p>\n      <p>\n        In this pair of talks we w
 ill construct such a space\, namely an\n        analogue of Culler-Vogtman
 n’s Outer Space for arbitrary RAAGs.\n      </p>\n      <p>\n        Thi
 s is joint work with Corey Bregman and Karen Vogtmann.\n      </p>\n
LOCATION:https://researchseminars.org/talk/GaTO/39/
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