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SUMMARY:Marco De Renzi (University of Montpellier)
DTSTART:20240110T170000Z
DTEND:20240110T180000Z
DTSTAMP:20260423T024655Z
UID:TQFT/98
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TQFT/98/">Al
 gebraic presentation of cobordisms and TQFTs</a>\nby Marco De Renzi (Unive
 rsity of Montpellier) as part of Topological Quantum Field Theory Club (IS
 T\, Lisbon)\n\n\nAbstract\nIt has long been known that the category of 2-d
 imensional cobordisms is freely generated by a commutative Frobenius algeb
 ra\, the circle. This result allows for a complete classification of TQFTs
  (Topological Quantum Field Theories) in dimension 2. In this talk I will 
 discuss similar algebraic presentations in dimension 3 and 4 due to Bobtch
 eva and Piergallini. In both cases\, the fundamental algebraic structures 
 are provided by certain Hopf algebras called BPH algebras. I will also pre
 sent examples of such algebras and the TQFTs they induce. This is a joint 
 work with A. Beliakova\, I. Bobtcheva\, and R. Piergallini.\n
LOCATION:https://researchseminars.org/talk/TQFT/98/
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