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Aug 15, 2018 at 3:07 history edited Gjergji Zaimi CC BY-SA 4.0
added 15 characters in body
Aug 14, 2018 at 23:45 comment added Theo Johnson-Freyd Ah, then I mis-reproduced it.
Aug 14, 2018 at 23:43 comment added Gjergji Zaimi Nahm defines it as the inverse of the Cartan matrix. :)
Aug 14, 2018 at 23:41 comment added Theo Johnson-Freyd @GjergjiZaimi Possibly. I was just reproducing what was in Nahm's paper.
Aug 14, 2018 at 23:41 vote accept Theo Johnson-Freyd
Aug 14, 2018 at 18:41 comment added Gjergji Zaimi I believe you either need to define $C$ as the inverse of the Cartan matrix, or just put $C^{-1}$ in the formula.
Aug 14, 2018 at 18:33 answer added Gjergji Zaimi timeline score: 24
Aug 13, 2018 at 11:42 history edited GH from MO
edited tags; edited tags
Aug 13, 2018 at 11:17 history asked Theo Johnson-Freyd CC BY-SA 4.0