Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-11-02
Class.Quant.Grav.17:3807-3820,2000
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, Latex
Scientific paper
10.1088/0264-9381/17/18/315
We find two-dimensional free-field variables for D-dimensional general relativity on spacetimes with D-2 commuting spacelike Killing vector fields and non-compact spatial sections for D>4. We show that there is a canonical transformation which maps the corresponding two-dimensional dilaton gravity theory into a two-dimensional diffeomorphism invariant theory of the free-field variables. We also show that the spacetime metric components can be expressed as asymptotic series in negative powers of the dilaton, with coefficients which can be determined in terms of the free fields.
Manojlovic Nenad
Mikovic Aleksandar
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