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SUMMARY:Corey Bregman (Brandeis)
DTSTART:20201210T153000Z
DTEND:20201210T160000Z
DTSTAMP:20260423T003233Z
UID:GaTO/40
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/40/">Ou
 ter space for right-angled Artin groups</a>\nby Corey Bregman (Brandeis) a
 s part of Geometry and topology online\n\n\nAbstract\n<p>\n        Right-a
 ngled Artin groups (RAAGs) span a\n        range of groups from free group
 s to free abelian groups.\n	Thus\, their (outer) automorphism groups range
  from \\(\\Out(F_n)\\) to\n        \\(\\GL(n\,\\ZZ)\\).  Automorphism grou
 ps of RAAGs have been well-studied\n        over the past decade from a pu
 rely algebraic viewpoint.  To\n        allow for a more geometric approach
 \, one needs to construct a\n        contractible space with a proper acti
 on of the group.\n      </p>\n      <p>\n        In this pair of talks we 
 will construct such a space\, namely an\n        analogue of Culler-Vogtma
 nn’s Outer Space for arbitrary RAAGs.\n      </p>\n      <p>\n        Th
 is is joint work with Ruth Charney and Karen Vogtmann.\n      </p>\n
LOCATION:https://researchseminars.org/talk/GaTO/40/
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