Abstract
This work is motivated by the 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 demonstrates the structure of bigravity most transparently.
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The author is most grateful to the Organizing Committee of the IV Zeldovich Meeting for the opportunity to participate in this exciting conference.
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Paper presented at the Fourth Zeldovich meeting, an international conference in honor of Ya.B. Zeldovich held in Minsk, Belarus, on September 7–11, 2020. Published by the recommendation of the special editors: S.Ya. Kilin, R. Ruffini, and G.V. Vereshchagin.
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Soloviev, V.O. The Canonical Structure of Bigravity. Astron. Rep. 65, 1057–1061 (2021). https://doi.org/10.1134/S1063772921100383
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DOI: https://doi.org/10.1134/S1063772921100383