Algebra, Logic and Topology

 

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Title
Relative commutator theory and the associator of loops

Abstract
The aim of this talk is to explain the concept of double central extension from the point of view of relative commutator theory. We shall focus on one concrete situation: the reflection of loops to groups. First we recall how the Galois theoretic approach to relative commutators arose out of Tomas Everaert's work in the context of Omega-groups. Then we show how the abstract definition applies to the case of loops, where the associator is an example of a relative commutator.

Speaker(s)
Tim Van der Linden (CMUC/FCT)

Date
October 27, 2009

Time
14.30

Room
Sala 5.5

 
     
 

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