36 citations · 283 across the 30 of their papers we have counts for
30 papers
Noether and Hilbert (metric) energy-momentum tensors are not, in general, equivalent
Mark Robert Baker, Natalia Kiriushcheva, Sergei Kuzmin
Multiple methods for deriving the energy-momentum tensor for a physical theory exist in the literature. The most common methods are to use Noether's first theorem with the 4-parame…
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…
Comment on "Modified F(R) Hořava-Lifshitz gravity: a way to accelerating FRW cosmology" by M. Chaichian, S. Nojiri, S. D. Odintsov, M. Oksanen, A. Tureanu
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
The partial Hamiltonian analysis of the Hořava-type action presented in the paper by M. Chaichian, S. Nojiri, S. D. Odintsov, M. Oksanen, A. Tureanu (Class. Quant. Grav. 27 (2011)…
Remarks on "Note about Hamiltonian formalism of healthy extended Hořava-Lifshitz gravity" by J. Klusoň
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
We reassess the conclusion by Klusoň (J. High Energy Phys. 1007 (2010) 038) that the Hamiltonian formulation of the healthy extended Hořava-Lifshitz gravity does not present any pr…
Comment on "Gauge Symmetries and Dirac Conjecture" by Y.-L. Wang, Z.-P. Li, K. Wang and some other counterexamples to the Dirac conjecture
N. Kiriushcheva, P. G. Komorowski, S. V. Kuzmin
We argue that the conclusion about the invalidity of the Dirac conjecture, made in the paper by Wang, Li, and Wang (Int. J. Theor. Phys. 48 1894, 2009), was based upon a flawed ana…
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…