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Gauge fixing in (2+1)-gravity: Dirac bracket and spacetime geometry
Gauge fixing (2+1)-gravity: Dirac bracket spacetime geometry
2011/3/2
We consider (2+1)-gravity with vanishing cosmological constant as a constrained dynamical system. By applying Dirac’s gauge fixing procedure, we implement the constraints and determine the Dirac brack...
SO(d,d;Z) Transformation Property for Gauge Fluxes and
Ramond-Ramond Fields in Noncommutative Geometry
SO(d d Z) spinor noncommutative geometry
2007/8/15
2002Vol.37No.2pp.173-178DOI:
SO(d,d;Z) Transformation Property for Gauge Fluxes and
Ramond-Ramond Fields in Noncommutative Geometry
WANG Pei
Institute of Modern Physics,...