The coset spaces E8/SO(10) × HFallow complex structures which can account for three quark-lepton generations including right-handed neutrinos. We show that in the context of supersymmetric SO(10) gauge theories in 6 dimensions they also provide the Higgs fields which are needed to break the electroweak and B - L gauge symmetries, and to generate small neutrino masses via the seesaw mechanism. © 2002 Elsevier Science B.V. All rights reserved.
Asaka, T., Buchmüller, W., & Covi, L. (2002). Exceptional coset spaces and unification in six dimensions. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 540(3–4), 295–300. https://doi.org/10.1016/S0370-2693(02)02153-6