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The Canonical Structure of Bigravity (2012.11545v1)
Published 21 Dec 2020 in gr-qc and hep-th
Abstract: This work is motivated by an intention to make the theory of bigravity more comprehensible. Bigravity is a modification of the General Relativity (GR), maybe even the most natural one because it is based on the equivalence principle. The Hamiltonian formalism in tetrad variables transparently demonstrates the structure of bigravity
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