The Problems of Time and Observables: Some Recent Mathematical Results

Details The Problems of Time and Observables: Some Recent Mathematical Results The Problems of Time and Observables: Some Recent Mathematical Results

1994-04-14

arxiv.org/abs/gr-qc/9404029v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Talk presented at the Lanczos Centenary Conference 3 pages, plain TeX

Scientific paper

We present 2 recent results on the problems of time and observables in
canonical gravity. (1) We cannot use parametrized field theory to solve the
problem of time because, strictly speaking, general relativity is not a
parametrized field theory. (2) We show that there are essentially no local
observables for vacuum spacetimes.

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