On derivation algebras of some exceptional Jordan algebras in
characteristic two
We analyze the problem of the simplicity of f4 in the split
characteristic two case. By using quadratic Jordan algebras, we have
proved that the derivation Lie algebra is not simple in this case.
Moreover, there exists only one proper nonzero ideal I which is
26-dimensional, simple as a Lie algebra and such that the quotient
algebra f4/I is also simple and isomorphic to I.
P. Alberca Bjerregaard < pgalberca@uma.es >
C. Martín González < candido@apncs.cie.uma.es >