Two-dimensional metric and tetrad gravities as constrained second order systems
R. N. Ghalati, N. Kiriushcheva, S. V. Kuzmin
Abstract
Using the Gitman-Lyakhovich-Tyutin generalization of the Ostrogradsky method for analyzing singular systems, we consider the Hamiltonian formulation of metric and tetrad gravities in two-dimensional Riemannian spacetime treating them as constrained higher-derivative theories. The algebraic structure of the Poisson brackets of the constraints and the corresponding gauge transformations are investigated in both cases.
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