Speaker
Alessio Marrani
Description
Freudenthal duality can be defined as an anti-involutive, non-linear map acting on symplectic spaces.
After a general introduction on some aspects of Maxwell-Einstein (super)gravity theories in four dimensions, I will consider their electric-magnetic duality Lie groups "of type E7", and the corresponding notion of Freudenthal duality.
I will also comment on the relation between the Hessian of the black hole entropy and the rigid, special Kaehler manifolds given by the pre-homogeneous vector spaces associated to the duality orbits.
