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SUMMARY:Jean Pierre Mutanguha (IAS)
DTSTART:20220512T140500Z
DTEND:20220512T145500Z
DTSTAMP:20260423T020959Z
UID:GaTO/62
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/62/">Ca
 nonical forms for free group automorphisms</a>\nby Jean Pierre Mutanguha (
 IAS) as part of Geometry and topology online\n\n\nAbstract\nThe Nielsen-
 –Thurston theory of surface homeomorphisms can be thought of as a surfac
 e analogue to the Jordan canonical form.  I will discuss my progress in de
 veloping a similar decomposition for free group automorphisms.  (Un)fortun
 ately\, free group automorphisms can have arbitrarily complicated behaviou
 r.  This forms a significant barrier to translating specific arguments tha
 t worked for surfaces into the free group setting\; nevertheless\, the ove
 rall ideas/strategies do translate!\n
LOCATION:https://researchseminars.org/talk/GaTO/62/
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