Conserved quantities from piecewise killing vectors

Dray, Tevian ; Padmanabhan, T. (1989) Conserved quantities from piecewise killing vectors General Relativity and Gravitation, 21 (7). pp. 741-745. ISSN 0001-7701

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Official URL: http://www.springerlink.com/content/jnp2lj1h678610...

Related URL: http://dx.doi.org/10.1007/BF00759083

Abstract

In the presence of symmetries, conserved quantities can be obtained by contracting the stress-energy tensor with a Killing vector. We generalize this result to piecewise Killing vectors by giving sufficient conditions for the construction of an associated conserved quantity. A typical example, namely, two stationary space-times joined together in such a way that the resulting space-time is not stationary, is treated in detail.

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