Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-06-07
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Talk at the Dubna Workshop ``Geometry and Integrable models'', JINR, Dubna, (Russia), October 1994 , published in the Proceedi
Scientific paper
Four--dimensional Einstein--Maxwell--dilaton--axion system restricted to space--times with one non--null Killing symmetry is formulated as the three--dimensional gravity coupled sigma--model. Several alternative representations are discussed and the associated hidden symmetries are revealed. The action of target space isometries on the initial set of (non--dualized ) variables is found. New mulicenter solutions are obtained via generating technique based on the formulation in terms of the non--dualized variables.
Gal'tsov Dmitri V.
Kechkin Oleg V.
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