Abstract
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 as an exotic holonomy and the associated
supermanifold M_g admits a SUSY-invariant polynomial. This real form has been
erroneously omitted in our paper.
Also, the two real four-dimensional exotic holonomies, whose occurrences
were un known at the time of writing, have been shown to exist very recently
by R. Bryant.
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