Trivial symmetries in a 3D topological torsion model of gravity

Debraj Roy; Rabin Banerjee

Trivial symmetries in a 3D topological torsion model of gravity

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arxiv 1212.4238 v1 pith:JL53JQAV submitted 2012-12-18 gr-qc hep-th

Rabin Banerjee , Debraj Roy This is my paper

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We study the gauge symmetries in a Mielke-Baekler type model of gravity in 2+1 dimensions. The model is built in a Poincare gauge theory framework where localisation of Poincare symmetries lead to gravity. However, explicit construction of gauge symmetries in the model through a Hamiltonian procedure yields an apparently different set of symmetries, as has been noted by various authors. Here, we show that the two sets of symmetries are actually equivalent in a canonical sense, their difference being just a set of trivial symmetries.

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Gauge Symmetries, Exact Symmetries and Conserved Charges in Minimal Massive Gravity
hep-th 2025-07 conditional novelty 6.0 of 10

Minimal Massive Gravity has three gauge symmetries, and a newly constructed transformation generates exact symmetries and a conserved charge in a restricted parameter limit.

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