Addendum to "Classification of irreducible holonomies of torsion-free affine connection"

Sergei Merkulov, Lorenz Schwachhöfer

The real form Spin(6,H) in End(R^{32}) of Spin(12,C) in End(C^{32}) is absolutely irreducible and thus satisfies the algebraic identities (40) and (41). Therefore, it also occurs a…