86 citations · 517 across the 34 of their papers we have counts for
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gr-qc2000
Embedding variables in finite dimensional models
Marcel Ambrus, Petr Hajicek
Global problems associated with the transformation from the Arnowitt, Deser and Misner (ADM) to the Kuchař variables are studied. Two models are considered: The Friedmann cosmology…
hep-th2000★ 55 cited
Unitary dynamics of spherical null gravitating shells
P. Hajicek
The dynamics of a thin spherically symmetric shell of zero-rest-mass matter in its own gravitational field is studied. A form of action principle is used that enables the reformula…
hep-th2000★ 58 cited
Embedding variables in the canonical theory of gravitating shells
P. Hajicek, C. Kiefer
A thin shell of light-like dust with its own gravitational field is studied in the special case of spherical symmetry. The action functional for this system due to Louko, Whiting,…