

Seminar of the Department of Algebra
February 26, 2008 15:00, Moscow, Steklov Mathematical Institute, Room 540 (8 Gubkina)






Group laws and commutativity conditions on $n$categories
L. Breen^{} 
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Abstract:
As the integer $n$ grows, so does the number of distinct natural commutativity conditions which may be satisfied by a given higher group law on an $n$category (or more generally an $n$stack). I will describe these conditions for small values of $n$, and discuss their relation with the cohomology of Eilenberg–Mac Lane spaces. This relation also points to some interesting multilinear invariants which may be attached to these categories and stacks.
Language: English

