details
Title
Categories with colimits, 2monads and Deligne's tensor product
Abstract I'll explain how every lax idempotent (=KZ) 2monad has a canonical
structure of a pseudocommutative 2monad. In the case of the 2monad R
whose algebras are categories with finite colimits, this gives rise to
a (pseudo) monoidal structure on RAlg, corresponding to a
pseudoclosed structure. If time permits, I'll explain why this tensor
product extends Deligne's tensor product of abelian categories.
I'll only assume some familiarity with the theory of 2monads as in
BlackwellKellyPower.
Speaker(s)
Ignacio Lopez Franco (CMUC)
Date
October 27, 2009 Time 15.30 Room
Sala 5.5
