From Einstein's Hole Argument to Dirac and Bergmann Observables
arXiv:gr-qc/0302089
Abstract
The individuation of point-events and the Hamiltonian way of distinguishing gravitational from inertial effects in general relativity are discussed.
Latex, 21 pages, Talk given at the 15th SIGRAV Conference on {\it General Relativity and Gravitational Physics}, Villa Mondragone (Roma), September 6-10, 2002