Erice lectures on "The status of local supersymmetry"
arXiv:hep-th/0403160
Abstract
In the first lecture we review the current status of local supersymmetry. In the second lecture we focus on D=11 supergravity as the low-energy limit of M-theory and pose the questions: (1) What are the D=11 symmetries? (2) How many supersymmetries can M-theory vacua preserve?
42 pages, latex. Minor corrections; added references