@alfonsi_luigi The E8 gauge field in https://t.co/oiiwsP0qnR - as in all the traditional articles it followed - is what one may expect to see from Horava-Witten arguments but has the shortcoming that it's not derived from deeper principles, but chosen by h
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@alfonsi_luigi I suppose you mean the E8-twisted String-structures as on p. 24 here: https://t.co/oiiwsP0qnR So it's the same general kind of twisted string structures here, but not for E8, instead just for the SU(2)=Sp(1) gauge field of a single heteroti
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『The E8 moduli 3-stack of the C-field in M-theory』 (Domenico Fiorenza, Hisham Sati, Urs Schreiber) http://t.co/GaTkp7iP