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hep-th2005★ 109 cited
Quantum gravity in terms of topological observables
Laurent Freidel, Artem Starodubtsev
We recast the action principle of four dimensional General Relativity so that it becomes amenable for perturbation theory which doesn't break general covariance. The coupling const…
hep-th1999
BF Description of Higher-Dimensional Gravity Theories
L. Freidel, K. Krasnov, R. Puzio
It is well known that, in the first-order formalism, pure three-dimensional gravity is just the BF theory. Similarly, four-dimensional general relativity can be formulated as BF th…