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7 votes
1 answer
282 views

Is the category of racks semi-abelian?

I wonder whether the category of (pointed) racks is semi-abelian. Any comments and references would be appreciated.
Kadir Emir's user avatar
7 votes
0 answers
342 views

Hemi-semi direct product of racks or quandles

In the category of racks (similarly quandles), instead of well-known semidirect product, we have the hemi-semi direct product construction as seen on Wagemann & Crans. As far as I know, semi ...
Kadir Emir's user avatar