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T-Duality and Spinning Solutions in 2 + 1 Gravity
Starting with the 2+1 Einstein--Maxwell--Dilaton system with a cosmological
constant and assuming two commuting Killing symmetries we derive the
corresponding --model. It is shown that, for general values of the
coupling parameters, the --duality group is , which coincides with
the group of linear coordinate transformations along the Killing orbits. This
duality, along with a suitable parameter choice, is applied to obtain some new
spinning solutions in the alternative gravity theories: Einstein--Maxwell,
Brans--Dicke and Einstein--Maxwell--Dilaton.Comment: 16 pages, LaTex with elsart.sty, no figure