Local Nilpotency of the McCrimmon Radical of a Jordan System

Using the fact that absolute zero divisors in Jordan pairs become Lie sandwiches of the corresponding TKK Lie algebras, we prove local nilpotency of the McCrimmon radical of a Jordan system (algebra, triple system or pair) over an arbitrary ring of scalars. As an application, we get that simple Jordan systems are always nondegenerate.

J. A. Anquela < anque@orion.ciencias.uniovi.es >

T. Cortés < cortes@orion.ciencias.uniovi.es >

E. Zelmanov < ezelmano@math.ucsd.edu >