D. Olive (Swansea):
Minimal Representations
and Freudenthal Triple Systems
Abstract:
Unitary representations of noncompact Lie
groups have long been sought in physics. The first nice concrete
construction was found by Dirac in connection with the anti-de
Sitter group. Some subsequent generalisations will be described,
in particular the minimal representation thought to be relevant
to realising duality in supergravity superstring theories.
A relation to Freudenthal triple systems will be described.
|