36 citations · 212 across the 19 of their papers we have counts for
19 papers
On the gauge symmetries of the spinning particle
N. Kiriushcheva, S. V. Kuzmin, D. G. C. McKeon
We reconsider the gauge symmetries of the spinning particle by a direct examination of the Lagrangian using a systematic procedure based on the Noether identities. It proves possib…
Field-parametrization dependence of Dirac's method for constrained Hamiltonians with first-class constraints: failure or triumph? Non-covariant models
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
We argue that the field-parametrization dependence of Dirac's procedure, for Hamiltonians with first-class constraints not only preserves covariance in covariant theories, but in n…
Lagrangian symmetries of the ADM action. Do we need a solution to the "non-canonicity puzzle"?
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
We argue that there is nothing puzzling in the fact that the Hamiltonian formulation of a covariant theory, General Relativity, after a non-covariant change of field variables is n…
Remarks on the "non-canonicity puzzle": Lagrangian symmetries of the Einstein-Hilbert action
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
Given the non-canonical relationship between variables used in the Hamiltonian formulations of the Einstein-Hilbert action (due to Pirani, Schild, Skinner (PSS) and Dirac) and the…
The Hamiltonian of Einstein affine-metric formulation of General Relativity
N. Kiriushcheva, S. V. Kuzmin
It is shown that the Hamiltonian of the Einstein affine-metric (first order) formulation of General Relativity (GR) leads to a constraint structure that allows the restoration of i…
Darboux coordinates for the Hamiltonian of first order Einstein-Cartan gravity
N. Kiriushcheva, S. V. Kuzmin
Based on preliminary analysis of the Hamiltonian formulation of the first order Einstein-Cartan action (arXiv:0902.0856 [gr-qc] and arXiv:0907.1553 [gr-qc]) we derive the Darboux c…