A triangular array of Lie groups which extends the Freudenthal magic square, due to Predrag Cvitanovic, Pierre Deligne and Benedict Gross.
Predrag Cvitanovic, Tracks, Lie’s, and Exceptional Magic, (pdf) (Fig. 1, p. 154)
Pierre Deligne, Benedict Gross, On the exceptional series, and its descendants, (pdf) (Table 1, p. 7)
Created on January 25, 2016 at 14:06:10. See the history of this page for a list of all contributions to it.