On the identities defining quadratic Jordan division algebras

Quadratic Jordan algebras are defined by identities that have to hold strictly, i.e., that continue to hold in every scalar extension. In this paper we show that strictness is not required for quadratic Jordan division algebras.

(New version 26 Jan 2015. This paper has appeared in Arch. Math. 104 (2015), 11 - 24).

M. Grüninger < matthias.grueninger@mathematik.uni-wuerzburg.de >