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SUMMARY:Christine Vespa (Université d'Aix-Marseille)
DTSTART:20240906T130000Z
DTEND:20240906T140000Z
DTSTAMP:20260423T021648Z
UID:ACPMS/44
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ACPMS/44/">W
 heeled PROP structure on stable cohomology</a>\nby Christine Vespa (Univer
 sité d'Aix-Marseille) as part of Algebraic and Combinatorial Perspectives
  in the Mathematical Sciences\n\n\nAbstract\nWheeled PROPs\, introduced by
  Markl\, Merkulov and Shadrin are PROPs equipped with extra structures whi
 ch can treat traces. In this talk\, after explaining the notions of PROPs 
 and wheeled PROPs\, I will describe a wheeled PROP structure on stable coh
 omology of automorphism groups of free groups with some particular coeffic
 ients. I will explain how cohomology classes constructed previously by Kaw
 azumi can be interpreted using this wheeled PROP structure and I will cons
 truct a morphism of wheeled PROPs from a PROP given in terms of functor ho
 mology and the wheeled PROP evoked previously. This is joint work with Nar
 iya Kawazumi.\n
LOCATION:https://researchseminars.org/talk/ACPMS/44/
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