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CATEGORIES:Category Theory Seminar
SUMMARY:The relationship between pie\, flexible and semifl
exible limits. - John Bourke (Brno)
DTSTART;TZID=Europe/London:20110607T141500
DTEND;TZID=Europe/London:20110607T154500
UID:TALK31707AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/31707
DESCRIPTION:Pie limits are important in 2-category theory beca
use although many important 2-categories fail to b
e complete\, such as the 2-category of monoidal ca
tegories and strong monoidal functors\, they do ty
pically admit pie limits. Flexible and semiflexib
le limits were first considered as instances of th
e more general notions of flexible and semiflexibl
e algebra.\n\nOur aim is to describe the relations
hip between these different classes of limits in a
number of ways: in terms of their good behaviour
with respect to equivalences\, and as various kind
s of coalgebra for a comonad. This is joint work w
ith Richard Garner.\n
LOCATION:MR11\, Centre for Mathematical Sciences
CONTACT:Nathan Bowler
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