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Results tagged with crossed-modules
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user 118688
3
votes
1
answer
242
views
Crossed modules in context of gerbes
Question : How does Crossed modules comes into the set up of gerbes.
I am reading notes on 1- and 2-gerbes by Lawrence Breen. Once he defines torsors, he introduces notion of crossed modules. It was …
- 6,023
5
votes
2
answers
303
views
First time appearance of Lie crossed module (crossed module of Lie groups) in literature
Can someone point me to a reference where the notion of "Lie crossed module" appeared for the first time?
I see many papers "recall" the definition of the Lie crossed module but, I do not see any ment …
- 6,023