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DTSTAMP:20260716T220450Z
DESCRIPTION:Title: Graphical presentations of abelian categories\n\nIn this
  talk\, I'll discuss graphical languages that give syntax for regular and 
 abelian categories. Every regular or abelian category has an associated re
 gular or abelian calculus\, a kind of graphical language with manipulation
  rules. This construction is 2-functorial and has a left adjoint given by 
 a 'syntactic category' construction\; indeed the 2-category of regular cat
 egories is reflective in that of regular calculi\, and similarly for abeli
 an categories and abelian calculi. I will discuss these notions\, and give
  a flavor of the graphical languages involved.\n
DTSTART:20190910T183000Z
DTEND:20190910T193000Z
LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:David Spivak\, MIT
URL:https://www.mcgill.ca/mathstat/channels/event/david-spivak-mit-300480
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