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Diffeomorphism Invariance in the Hamiltonian formulation of General Relativity

- N. Kiriushcheva, S. V. Kuzmin, C. Racknor, S. Valluri
- Physics
- 28 July 2008

Comment on `Hamiltonian formulation for the theory of gravity and canonical transformations in extended phase space' by T P Shestakova

- N. Kiriushcheva, P. G. Komorowski, S. Kuzmin
- Physics
- 15 July 2011

We argue that the conclusion, `we cannot consider the Dirac approach as fundamental and undoubted', made in the paper by Shestakova (Class. Quantum Grav. 28 055009, 2011), is based upon an incomplete… Expand

The Hamiltonian formulation of tetrad gravity: Three-dimensional case

- A. M. Frolov, N. Kiriushcheva, S. V. Kuzmin
- Physics
- 5 February 2009

The Hamiltonian formulation of tetrad gravity in any dimension higher than two, using its first-order form where tetrads and spin connections are treated as independent variables, is discussed, and… Expand

Comments on ``The Einstein-hilbert Lagrangian density in a 2-dimensional spacetime is an exact differential'' by R. da Rocha and W.A. Rodrigues, Jr.

- N. Kiriushcheva, S. Kuzmin
- Physics
- 4 February 2006

We argue that the recent result of da Rocha and Rodrigues that in two dimensional spacetime the Lagrangian of tetrad gravity is an exact differential [1], despite the claim of the authors, neither… Expand

Scattering of a Gaussian wave packet by a reflectionless potential

- N. Kiriushcheva, S. Kuzmin
- Physics
- 1 December 1998

The specific features of scattering of the Gaussian wave packet by the simplest of all reflectionless potentials, the Sech-squared well, are considered. The results of numerical computation show that… Expand

The Hamiltonian formulation of general relativity: myths and reality

- N. Kiriushcheva, S. V. Kuzmin
- Physics
- 31 August 2008

A conventional wisdom often perpetuated in the literature states that: (i) a 3 + 1 decomposition of spacetime into space and time is synonymous with the canonical treatment and this decomposition is… Expand

Translational invariance of the Einstein–Cartan action in any dimension

- N. Kiriushcheva, S. V. Kuzmin
- Physics
- 12 July 2009

We demonstrate that from the first order formulation of the Einstein– Cartan action it is possible to derive the basic differential identity that leads to translational invariance of the action in… Expand

Influence of mass polydispersity on dynamics of simple liquids and colloids.

- N. Kiriushcheva, P. H. Poole
- PhysicsPhysical review. E, Statistical, nonlinear, and…
- 17 July 2001

TLDR

Noether and Hilbert (metric) energy-momentum tensors are not, in general, equivalent

- M. R. Baker, N. Kiriushcheva, S. Kuzmin
- Physics
- 20 November 2020

A Canonical Analysis of the Einstein-Hilbert Action in First Order Form

- N. Kiriushcheva, S. V. Kuzmin, D. McKeon
- Mathematics
- 30 June 2006

Using the Dirac constraint formalism, we examine the canonical structure of the Einstein–Hilbert action , treating the metric gαβ and the symmetric affine connection as independent variables. For d>2… Expand

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