International Journal of Theoretical Physics

, Volume 49, Issue 2, pp 260–269

The Noether Conservation Laws of Some Vaidiya Metrics

Article

DOI: 10.1007/s10773-009-0199-3

Cite this article as:
Narain, R. & Kara, A.H. Int J Theor Phys (2010) 49: 260. doi:10.1007/s10773-009-0199-3

Abstract

In this paper, we show that a large amount information can be extracted from a knowledge of the vector fields that leave the action integral invariant, viz., Noether symmetries. In addition to a larger class of conservation laws than those given by the isometries or Killing vectors, we may conclude what the isometries are and that these form a Lie subalgebra of the Noether symmetry algebra. We perform our analysis on versions of the Vaidiya metric yielding some previously unknown information regarding the corresponding manifold. Lastly, with particular reference to this metric, we show that the only variations on m(u) that occur are m=0, m=constant, m=u and m=m(u).

Vaidiya metric Conservation laws Noether symmetries 

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.School of MathematicsUniversity of the WitwatersrandJohannesburgSouth Africa

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