Mathematics – Mathematical Physics
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jmp....37.1485s&link_type=abstract
Journal of Mathematical Physics, Vol. 37, No. 3, p. 1485 - 1500
Mathematics
Mathematical Physics
Gravitation Theory
Scientific paper
A conformal gauge theory of (2+1)-dimensional gravity is developed within a fiber-bundle structure. Here gravitational field variables are triads and Lorentz gauge potentials, both introduced under a nonlinear realization, which leads to spontaneous symmetry breaking. The most general gravitational Lagrangian density is given in a quadratic form of the conformal invariant gauge fields. The authors also obtain the Poincare gauge theory in vacuum. In a weak-field limit the gravitational field equations for a static and spinless point-like source, are naturally reduced to the Newtonian case.
Duarte Rui
Stedile Edson
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