Published May 20, 2005 | Version v1
Journal article

Lie symmetries for equations in conformal geometries

  • 1. Astrophysics and Cosmology Research Unit, School of Mathematical Sciences, University of KwaZulu-Natal, Durban 4041 (South Africa)
  • 2. Department of Mathematics, Technikon Mangosuthu, Durban 4000 (South Africa)

Description

We seek exact solutions to the Einstein field equations which arise when two spacetime geometries are conformally related. Whilst this is a simple method to generate new solutions to the field equations, very few such examples have been found in practice. We use the method of Lie analysis of differential equations to obtain new group invariant solutions to conformally related Petrov type D spacetimes. Four cases arise depending on the nature of the Lie symmetry generator. In three cases we are in a position to solve the master field equation in terms of elementary functions. In the fourth case special solutions in terms of Bessel functions are obtained. These solutions contain known models as special cases

Availability note (English)

Available online at http://stacks.iop.org/0305-4470/38/4419/a5_20_009.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/

Additional details

Publishing Information

Journal Title
Journal of Physics. A, Mathematical and General
Journal Volume
38
Journal Issue
20
Journal Page Range
p. 4419-4431
ISSN
0305-4470
CODEN
JPHAC5

INIS