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SUMMARY:Imma Gálvez Carrillo (UPC Barcelona\, Spain)
DTSTART:20220519T110000Z
DTEND:20220519T120000Z
DTSTAMP:20260423T041624Z
UID:LAGOON/70
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LAGOON/70/">
 Combinatorial bialgebras and decomposition spaces</a>\nby Imma Gálvez Car
 rillo (UPC Barcelona\, Spain) as part of Longitudinal Algebra and Geometry
  Open ONline Seminar (LAGOON)\n\n\nAbstract\nDecomposition spaces (introdu
 ced independently by Dyckerhoff and Kapranov under the name 2-Segal spaces
 ) are simplicial spaces with a certain exactness property that models coas
 sociativity in the same way that usual Segal spaces capture associative co
 mposition. I will talk about joint work with Joachim Kock and Andrew Tonks
  on the application of decomposition spaces in "categorified" or "objectiv
 e" algebra.  As motivating examples\, I will discuss decomposition spaces 
 for many classical combinatorial Hopf algebras\, such as those of symmetri
 c functions.\n\nMeeting Link uni-koeln.zoom.us/j/91875528987?pwd=TjNZV1lNd
 VJNOWUrR2xNalRuQWk3dz09\n\nMeeting ID: 918 7552 8987 Password: LAGOON2022\
 n
LOCATION:https://researchseminars.org/talk/LAGOON/70/
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